You don't see a problem with them searching the same person three times?
It depends why. Really... if they searched you three times, because they weren't well-connected between themselves, then it's bad. If they did it out of security concerns (whatever those may be, neither you or me are to judge), then it's alright. Not 'Yay, I got searched three times!' kind of alright, but the 'Meh.' kind. Always keep in mind they're just doing their job, which is essential, and for your own good, and others'. Be polite and cooperative, and it's likely to be smoother and faster for all concerned (no dirty thoughts, chums).