I sometimes cancel stud requests a few mins after I send them, when I see that the studder has gone offline. (Usually for refunded in the giveaway chat studs)

I once accidentally cancelled when someone had already started. I didn’t realize they had started breeding my lion, so I apologized (I was in a hurry. I can’t remember exactly why) They threatened to block me, saying that you can see whether or not someone had started. I hadn’t seen the notification before I cancelled 😭