I've accidentally exhaled straight into my cats' faces before now, and they don't like it, but I'm guessing that was more to do with the fact that I was blowing straight at them than the fact I was blowing pot smoke their way. Normally if I'm smoking they don't mind, and come and curl up on my lap. I'ver never tried to get them stoned, but if they wanna come into the living room while we're all hot boxing the place that's up to them... they can always ask to go out again!