Sure.

Theres no harm in them in any way as long as the 'user' is aware of what not to do and how to clean up and tackle the problems like edge filling from holes. We've used them alot this last two weeks because of hard surface models that have required holes in odd places....all good fun and are quick to sort out generally.

My Lead Supervisor has twitched when we mentioned them LOL, but its all in jest....

cheers
Jay