Then you are probably familiar with the Drill Sergeant's smirks when a young recruit fails to get his thumb out of the way of the returning Bolt after depressing the Follower.
Oh, went and looked at a video of M1 thumb.
Been shooting Garand since in was but a wee lad and hasn’t happened before but, there’s always tomorrow....
Pretty sure you need ice after that.
The spring is pretty powerful, which is why it rarely fails.