That's too bad. Newbies should always be supervised when first getting into this hobby. My field is a private invite only club with only 20 or so members. They all have been flying for 20 years minimum ( except me i'm only 28) so these things don't happen there.. thank god..

One bad thing that did happen was this one guy from another club came to fly with one of our members who is a friend of his, he was signed in if you say.. Well anyways he said he could fly good but as soon as he lifted his 1/4 scale cub on the runway we knew right away there was going to be some trouble with this guy. After he fought to keep it straight he managed to fly a circuit MAYBE 2 times then BANG!!!!

He banked the plane TOO much with no rudder at all (common mistake with a cub) and the plane went down into a group of spectators..Luckily the people seen it coming down and moved out of the way..
Can you imagine that slamming into somebody or even a little kid..
That is why beginners should always be supervised and also when somebody new comes to fly at your club he should be checked out also..
Remember planes are not your averege toy and can cause serious harm if not death in some cases.
Safety should be #1 at a field and I know alot of fields don't follow that.