Southwest employees destroyed my guitar when I flew with them. Literally, the neck of the guitar snapped even though it was in a professional touring hard case. I normally carry it on, but the Bit@# of a woman they had working at the counter forced me to check it, even though the flight wasn't close to full. I have flown hundreds of times while touring and never once had an issue with damaged instruments, but they had to have abused the case for the neck to break like it did. $5000 goodbye.