I hope this video helps break a few of your stereotypes. I found that most Tattoo artists that I dealt with were very courteous professionals.
All tattoo equipment is sterilized before and after every use. I edited the video in a non-sequential timeline.
A huge thanks to Seejay and Leah at Timepiece Tattoo. They were open and welcoming to some random nerd who asked if he could hang out and film in their shop.