What's in the bag?

Lately I’ve been hearing that airlines are catching onto the whole “it’s a massage table” or “its a display case” when you fly with a bike bag. What’s your favorite explanation to give the airlines when you’re traveling? Any ones that have had 100% success rates?

I usually just say it’s a bike. Like they aren’t gonna open it and know it’s a bike.

I know tri bikes look stupid, but basically they still look like bikes.

CS