The little plastic cup at the end of the HF wire got tangled up in the fence last time I used one.
But seriously, the mindset to attack is the perceived "freedoms" of RAA that need to be ameliorated with that special aviators need called airmanship. This tempered with some recency of both technology and operational needs which is usually a requirement to demonstrate at the BFR. Be this as it may, you can't regulate or educate against idiots and we have lots of them in all the aviation spectrum.
I hope this also addresses Sunfish' post.
