I don't carry it. I thought it was illegal in NY. I used to buy it in PA for my wife, my mom, and my sister because I figured no cop would give a woman a hard time over it.
I don't see a downside to carrying it other than I don't even like carrying a cellphone, car keys, ID, etc around
Rcade's dog scenario is a prime example of a good reason to carry it. Any wildlife for that matter.
if I owned a store I'd keep it for those flash mobs too.
True story...I bought my sister pepper spray. The "button" to activate it popped off. I went into the bar restroom to fix it, sprayed the tiniest of squirts into the urinal, and when I walked out, it cleared the whole bar out except me and my sister. So, sully's bathroom line story is spot on as well.