Thanks to everyone who contributed your opinions on Puppy; Puppy is now feeling secure in his identity and seriously considering a further career in acting and impersonations.
I tried to pare down our possessions when we moved. As usual, I chose some of the wrong things to pare down, one of the least logical of which was our high chair. It did take up a lot of space, and I did manage to resell it for exactly what I paid for it ($5) , but simply using D1's old booster seat (also purchased for $5 at a different yard sale) for D2 has not worked quite as well as I hoped.
For one thing, a booster seat doesn't offer quite the support of a high chair, and he tends to slide down. This usually prompts me to sing the second verse of "Wondrous Love," so that now D1 will start to chant "Sinking down, sinking down" whenever it occurs. The more serious problem is that several months of D1's usage caused the catches on the tray to weaken, and some aggresive infantile pushing (D2 uses his toes) will send it flying to the ground. D2 thinks this is funny. Needless to say, we don't put his food on his tray.
In other odd things D1 likes to say, the most worrisome is probably "Credit Card" (we give her those fake ones that come in the mail to put in her purse). "Guacamole" is her longest word. "Stinky stinky diaper" is another one applied to D2. She's fascinated with school buses, too. I hope this isn't a bad sign.