1. agree with travelqueen
2. my husband and I were approached on the beach between the island ferry and BC's on more than one occasion. Just be straight foreward with them if you are not interested. They were a bit pushy but that is just their job.
3. as far as the drug comment. my husband and myself were not approached once to buy drugs, although i do know it happens from time to time. as for the rest of the advise from travelqueen on this question i totally agree.
4. no idea