I have a friend who broke into a lab to free animals used for testing. I was vegan a long time ago for a year or two and since I was a popular guy most of my friends became vegetarian too...but not for the reasons I'd want a person to make that decision. My friend who broke into the lab has a true love for every living creature and I do also. If an animal clearly wants to get high then get it high; if an animal doesn't seem to want to be, then I would put it somewhere else while I smoked. I had a dog who would come in the room while I was high and get really close to the blunt and sniff it and look at me. I got it high once and it always came back but I only let it breathe in second hand smoke from the air; I didn't blow it in her face or anything.
as for lab animals...and zoo's..man don't even get me into that. I have totally different views then most people. I'm not into injecting shit into animals and trapping them in cages to be test subjects. to be quite honest, I'd put a person in that animals position instead because a person can decide whether they would like to be tested and also paid. tests that do not harm animals I guess I can tolerate. but I love every living creature and have respect for all animals. humans can be dicks and everything, so can dogs and stuff so there are people and animals that I don't like because they have bad attitudes.