That is far from a mishap. A mishap is you drained the brake fluid all over your gas tank and now it looks tie-dyed. A mishap is bleeding brakes and shooting brake fluid on your 2011 Chevrolet Corvette Z06 making one side look tie-dyed. A mishap is breaking the bleeder nipple off after getting the brakes finally bled after 6 bottles of fluid. You didn't have a mishap, you had a sting of conscience. A sting of conscience can occur when you go to a bar and your buddies buy you rounds and you forget to buy them a round (but you don't recall it until 6 months after the fact).
Being a lexical maven has its responsibilities, meaning I hate seeing words (and dogs) abused.