@nora if you feel like you need to sneeze and just want to get it over with, look directly at the brightest source of light in your environment - except for the literal sun, use a reflection of it in a window if you're outside - and blink rapidly for a few seconds.

not every brain is vulnerable to this exploit, and it does have a non-zero risk to those at risk for seizures brought on by visual stimuli, but it *does* work for those whose brains are a very particular way.