I've noticed a few things about this episode:

1:When Jack and the taxi driver are walking up the stairs with his things, you can clearly see a man to the right of the screen dressed in what seems like a waiter's outfit. Who was he? What was he doing there?(I know there was a post about this but I'm not sure about it.)

2: When Jack goes into the kitchen to cure his hiccups, Chrissy's mother comes out of the room and Jack hides in the broom closet. Then when she leaves he comes out with a mop which he takes with him. As he is leaving the kitchen with the mop, listen carefully and you will hear an audience member say "Ha....the mop!"

3:Why was it so easy for Chrissy's mother(a weak old lady) to close the stuck window, yet Jack and Chrissy(who are fairly strong) have trouble and can't shut it?!

Hmmmmmmmmm..................:)