I think it’s the juxtaposition of contrary emotions you don’t know what to do with all at once. You just explode.

You’re surprised cause you were just minding your own business, you’re relieved it’s minor, you’re embarrassed because that was clumsy, did anyone see?, regardless of if it’s minor bone pain REALLY hurts, grateful it’s only going to hurt a few minutes ...

ouch Ouch OUCH!!!