I also miss Teach, Woofb, but I guess somebody had to be the Old Mentor Who Dies.
RathDarkblade back on Sept 20, 2021 asked:
"why "urinating dog" (as a substitute for exclamation mark)? Is there any logical reason, or is it simply because of The Rule Of Funny?"
I think it's probably simply that some small, excitable dogs will urinate when excited. So a urinating dog would be a pictogram for excitement.