From commenter Bill Poser in the Starbucks tip jar thread:
Some years ago here in British Columbia a guy filled up his car and then drove off without paying. The attendant ran after him, grabbed the door handle, got his hand stuck, and was dragged to death. This led to a successful campaign to require prepayment at gas stations, which is very inconvenient if you aren’t able to use a credit card or debit card at the pump. “Gas and dash” incidents may have been frequent enough to justify this, but that wasn’t the argument. The argument was that this measure was necessary for the safety of the attendants. Of course, all that is really required for the safety of the attendants is for them not to go running after and grabbing onto fleeing vehicles. The attendant’s death was tragic, but it was a freak accident triggered by the attendant’s brave but foolish attempt to prevent the theft of a rather modest amount of money.
Canada.com has a further report on the “B.C. WorkSafe” regulation.