Bullpen farting. Not quite the helpless feeling that unforgivable airplane gas often breeds, but equally hellacious.
These incidents generally tend to happen in three memorable steps: First, the uninvited uppercut up the nostril. Then, the haunting realization. Finally, the understandable fleeing of the scene, which is occasionally accompanied by a scornful People’s Eyebrow. Unfortunately, you can only run so far in a bullpen.