To thank your clients!

[Anonymous]

Thank you for not bringing bulky goods on board.

I have spotted a small sticker of which the contents are as above, about the size of 3R photo, inside a bus.

I smile because:
If I don’t bring bulky goods on board, the bus company will thank me.
If I do, the bus company won’t thank me.

What kind of logic is that?

[Tdol]

We use it; you'll see 'Thank you for not smoking' signs. It's meant as a polite request.