my theory is if you want to play it practise hard the skill...
however the crap about playing at high standard you expect it is bollox..
in professional players nets they hardly try and kill the player neither do high up league cricket either...
I think it the average medium pacer who trys to knock your head off who cant get it above you thigh outdoors is funny.
However practise it people with tennis balls get confident as
@DorsetDan SAYS ONCE YOU HAVE SMIFED ONE they tend to piss off...
Also if your club has a decent coach over-watching he should step in if it daft practise