I'm glad those safeguards are in place as I've accidentally arrived on the "Are you absolutely sure you'd like to reset your retainer?" screen a dozen times now (and almost selected "Yes" on accident once.) While it would certainly be the players fault for not carefully reading what was displayed, it should be noted that taking care of retainers hourly / daily requires no thought processes now. The same number of clicks is now muscle memory at this point after doing it hundreds of times. The only thing stopping you from an accidental reset is a Yes / No selection. I agree that a Checkmark box would completely rid of any possible accidents.