Not a single one, B"H.
Once had a close call, though. Hertz bus at LAX was taking forever and got to bag drop with an endless line (this was before I thought of using a SkyCap) 50 minutes before my flight. Tried talking to a manager but he just said not to worry. Turns out that I got that same manager at the counter 40 minutes before the flight, who now said he can't check my bag and I have to take it through to have it gate-checked. Anyway, lost a nice bottle of facial wash, shampoo, and rose water when they took apart my bag at TSA (thank goodness I didn't do a booze run). Barely made it to the gate, but got the front-most seat. Too bad I had to wait for my bag at JFK for over an hour...