Bottomless slushie day
Yesterday -- Monday the 23rd -- was infinite refill day for slushies for the local 7-11s. The rules were that you buy a large slushie, get a sticker to put on the cup, and for the rest of the day just show the sticker at the counter instead of paying.
Much as I enjoy a bargain -- and my slushies! -- I was concerned that this would be a form of aversion therapy: that by the end of the day I would never be able to look another slushie in the straw again.
I made it through four slushies. That was about right.
If it had been "free fruit smoothie day", I would've done better. :)