I'm on at least one plane every month. I check my luggage because of the liquid thing and I ALWAYS have a TSA card inside when they go through my luggage. I have a thick hair product known as 'Shatter' that is always looked at for some reason.
I rarely fly into MIA ... usually MCO or FLL now ... but the last time I did? I had two very expensive brassieres stolen from one of my bags. When I checked into my hotel, the two side pockets I had them in were empty. Now I know that's a weird thing to take, but these items were very expensive so obviously, the baggage handlers knew this. They probably wound up as Christmas gifts for their wives!