Unexpected Challenges

Prompted by my other thread, thinking about when players have “self-refereed” to provide for fair play, I’m curious if there’s been use of a challenge system in professional sports in a “backwards” way, perhaps best explained by a hypothetical example.

A tennis player hits a serve and their opponent returns the serve with a clear winner. Has the serving player ever challenged their serve, hoping the challenge would actually find that their serve was out, rather than in, thereby not losing the point to their opponent’s winner?

Another example might be an American football coach challenging one of his own player’s receptions (perhaps because the reception would result in time expiring, whereas an incomplete pass would result in a clock stoppage and time for another play).

I assume both of these hypotheticals are allowed; I don’t believe the challenge system is only usable when it would “benefit” (in the traditional sense) the player doing the challenging.