If you are collecting for any registered charity, [christian aids, oxfam etc], and you get any hassle off anyone, just tell them to piss off, just say "john from hull said , get lost and mind your bisyness"
if they still give you hassle, just hit them with a big stick, you should carry a big stick with you anyway, to hit the dangerous dogs with, 9you are enitled to do this , as long as you use reasonable force, its the law], you can say " get that fuc**king dog away from me, or i chop its hed off], thats reasonable force.john