My boy had the Liverpool cream 3 years running for his sarcoids in sheath area. He did need sedating after first couple of times the cream was applied but otherwise was his usual cheeky self :)
Finally got rid of them.
I would give a lot of thought if had to use again but had tried other...
In that case you probably don't need to, if they had the power they would enforce it....
My neighbour has electric fencing along footpath, stroppy walkers would have definitely had it removed....just because they could :)