i don't mind non invasive animal testing. i visited an animal research facility as part of my schooling and i wanted to be one of their mice. They were housed in air tight, tripple filtered little bubbles, no more than three mice to a "bubble". The air in that room was WONDERFUL! three times a day they were checked, cleaned and fed and data collected (i believe they were a drug testing group, antibiotics i think). each cube of bubbles was assigned a care technician and unlealthy animals were removed from testing and that problem documented. i asked if i could have my own bubble and live there, they just laughed at me.