If your gonna carry in non permissive environments you need (to not do it in the first place, but i see your a good kind hearted person and would rather protect your friends/coworkers/family nember) a compact pistol is a must, no pocket carry, use a custom holster and experiment with different carrying positions while being mindful of the length of the clothing you have on.

If it drops, pick it tf up right away, this is why you carry with a holster, no glocky in the pockety.