That saying always reminds me of this:
Also, my local fish and chips shop almost always gives me extra. The chip portions are huge, and on more than one occasion they've given me extra fish scallops (a bit of fish sandwiched between two potatoes, battered and deep fried. Absolutely brilliant!) with the excuse that "They're smaller than usual, so I'll give you an extra one."
Personally, I think it's because I'm so thin, everyone I meet just wants to put meat on my bones.
