GUEST , Mark Stephens - You obviously are somewhat ignorant of the UK Folk Scene ! John Kirkpatrick is a well liked (And usually well paid) professioanl artist and that is part of his satge act !
We have been booked (AND paid) as Street Entertainment . When we are being paid , we do NOT think it ethical to 'bottle' , but it seems churlish to refuse a small cash donation , Especially when proffered by a child (From Mommy's purse).
Actively bottling when you have been paid is NOT acceptable , and I am sure any organiser becoming aware would take a VERY dim view .