500
Marco ended up at the store just before closing, when there was just one checkout open, and a very slow clerk. The lady in front of Marco kept asking, "Is it always this slow?" After the fifth time, Marco replied, somewhat politely, "Yes, ma'am, except on Thursdays. Why don't you come back then?"
The lady turned in a huff and galumphed out of the store, leaving one less person in front of Marco.
Galumphed means?
What is walked out mad/huffing and puffing?