I did both my shoulders at Imperial this year, I didn't travel but I did saniderm them and work out the following week, do it. Also unless you are super weak and super dirty stuff doesn't get infected that easily, do it. I get my back tattooed over 2 days and get on a plane for an entire day, do it.
If the subliminal messaging hasnt worked yet, you should do it. Shave your whole damn leg, get tattooed three times, throw saniderm over that stuff and maybe get a 4th walk-up.