That brief moment of terror after I've used cooking spray on the food when I worry that it was bug spray instead, even though there's never been bug spray in this house and I haven't bought any in at least three decades.
@Austin_Dern I bought bug spray after a particularly bad day of getting bitten by mosquitoes while waiting for the bus to college, and then proceeded to never actually use it the rest of the semester.
Now I use it when I go biking, so I keep it with my bike stuff which is far away from the kitchen stuff. :p
@NovaSquirrel Heh. Good placement. (Seriously; a key part of life is arranging stuff so it takes effort to make bad mistakes.)