Sometimes these people can be, obviously, very well meaning, and sometimes they can actually be charities. The charities often subcontract someone to do the selling for them. But the reality is that there is an aspect of pressure that is often not welcome. Sometimes that pressure, like I said before, can come from members of Parliament. I know myself when I've knocked on doors previously and I've seen the sign "Do not knock" on the door. What does that mean for a member of Parliament? I'm not sure. Maybe someone else might have an opinion on that. I actually have been bitten twice on a doorstep by dogs, Madam Speaker, not by constituents, but I have been bitten twice by dogs—I didn't learn the first time, but it is very important when someone does go to a door that they don't put extra pressure on the person who opens the door.