My DS4 had an anyeurism/brain surgery last fall and was left with left side weakness. He wears an orthopedic brace to walk on his left foot. Does anyone have experience with going through security at the airport with one of these. Do we need to take it off just prior to the security checkpoint or will they allow him to keep it on. I know some people will be very angry with us if he has to take it off because it takes a while to get it on and off. We leave Sunday (5/14) and any info will be appreciated. THanks!