Thanks for your patience... Ok here's the scoop. Saga One
Mom was preparing to give Hershey her dinner on Saturday evening when she suddenly started retching... After a few anxious moments, out come a completely disintegrated rubber ball. Hershey had somehow chewed MY squeaky rubber ball into pieces and swollowed all the pieces (just in case anyone is wondering, I did not give the ball to her, she took it on her own accord so I had nothing to do with it... **crosses paws**). I must tell you that it is pretty amazing that the silly girl found the old rubber ball tasty enough to eat it. I mean she ate the whole entire ball!!
Mom did not even realise the ball is missing since there were no remnants around the house to raise any suspicion, moreover, Hershey seemed to be like her normal self (other than not pooping for 3 whole days... where does she store all of the ummm... poop??). In hindsight, we should have taken some photos of the remains of my sqeuaky ball (may it rest in peace), but mom was too worried and grossed out.
It was a weekend and it's too late to bring her to the vet, so they opted to just monitor her for a while. Moreover, looking at the remains of what she threw up, mom estimated that it seems to be all there is to the ill-fated ball.
Below is a pic of my handsome self with a ball that resembles the one that Hershey ate (that one was a different color).

Saga Two
This is actually a continuation from Saga One. As I have mentioned above, they were monitoring Hershey on Sat night and on Sun, she seemed to be perfectly normal i.e. eating, drinking and being a nuisance. Then dad noticed that on Sunday night, she seemed a little lethargic and listless, so to be on the safe side, he decided that they should take her to the vet on Monday. Moreover, it's Day 4 and still no poop.
So off she went to the vet on Monday together with dad and while they were waiting for their turn, dad tied her loosely on one of the leg of the chair that he was sitting on. After a long wait, dad went over to the counter to find out how long more he had to wait and at that instant, Hershey decided to do The Great Escape. She tugged on her leash (which was still being tied to the chair) and with all her tugging, the chair toppled. It freaked her out totally and she bolted - right into a busy road in front of the clinic!! Dad was alerted by the panic cries of the people who saw it happen (he had his back to her then) and dashed after the runaway pup screaming her name at the same time. That road is a 3-lane road that is usually quite busy with vehicles travelling fairly fast. Dad said that at that moment, the only thing on his mind was 'Sh*t, she's going to be run over and I gotto call my wife and let her know Hershey is dead'.
Probably Hershey's guardian angels were looking out for her because traffic was surprising light right at that moment (dad only had to stop one oncoming vehicle). He yelled at her again and even more surprisingly his recall worked (one of the few rare occasions). She sheepishly trotted from the middle of that road back to the side where dad was. Dad grabbed her and reprimanded her B.I.G time. All the people in the clinic who saw the entire incident commented to dad on how lucky Hershey was.
Eventually dad did not wait for the vet as he was shaking with shock/ anger/ relief and just wanted to leave the place. I think Hershey must have been traumatised by the incident... so much so that she pooped once she reached home!
Mom almost had a heart attack when dad recounted the story to her back home. It reminded her of the time where an unnamed pup **clears throat nervously** did the exact same thing to her around 9 years ago. She had to stop traffic in the middle of a T-junction in order save the pup. She wondered if the unnamed pup had anything to do with Hershey's Great Escape.
Here's the lucky girl... still happily oblivious to how close she was to being a run over by a car.
** Disclaimer **
I, Huskee Boy, solemly swear that I:
1) did not give the rubber ball to Hershey
2) did not teach or in any way encouraged her to eat the rubber ball
3) did not have anything to do with The Great Escape