Once upon a time in Britain, when people wanted you to give money to charity in the street, they just stood modestly in shop doorways, perhaps looking at passers-by with a meaningful glance, but doing nothing more threatening than rattling their collecting boxes.
Then, in the late 20th century, things changed. Earnest young men and women started coming up to you, clipboard in hand, as you were walking along, and giving you a lengthy verbal presentation on the cause they wanted you to support. They rounded this off by asking you to sign up for an ongoing series of donations to their charity.
How did we feel about this? Well, to judge from the word we in Britain invented for such people, we weren't too impressed. We call them chuggers, and accuse them of trying to chug us. Those are blended words, made up of the ch- of 'charity' and the –ug- of 'mug' and 'mugger'.
Now, a mugger is someone who attacks and robs you in a public place, so chugger is really quite a hostile word for a person who, after all, is just trying to do a bit of good in the world.
But since it first appeared in 2002, it seems to have established a place for itself in the language. Are we Brits too mean, or just generally grumpy? Either way, we don't like being chugged.