I know this is kind of an old thread, but I couldn't resist. I haven't personally traveled by air since my RC, but when I do, if the pad becomes an issue, I'll just pull down my pants and show them the scar! I'm sure I'll have plenty of time in the back room to explain all about bladder cancer, radical cystoprostatecomies, neo-bladders, stress incontinence, and the whole works! Who knows, maybe I'll be invited to give a seminar to all of the TSA folks to help them become more sensitive to incontinence-pad-wearers everywhere!
I all seriousness, none of us need to be worried about what anyone says about the pads, as most of them haven't been through what we've been through. If it helps, wear an informative medical condition bracelet or necklace (metal, I know, but you can take it out of the basket and show it to them if it is necessary). Actually, if you're in an accident, some sort of medical condition ID may not be a bad idea anyway.
Neo-bladders of the world - UNITE!!