He was very clear about dipping my hand in slowly, and not moving it at all, as that would’ve shaken off the boundary and resulted in frostnip - but this was th

He was very clear about dipping my hand in slowly, and not moving it at all, as that would’ve shaken off the boundary and resulted in frostnip - but this was the 90’s, when getting kids to put their hand in cryo was just one of those things you do.