What's normal to you about your culture may be seriously weird to someone from somewhere else. Over at Reddit, someone asked non-Americans "What is the weirdest thing about America that Americans don't realise is weird?" The responses are funny and sometimes very surprising to those of us from the states. For example, many people commented about the abundance of squirrels in the country and one person found the way we dispose of dead fish down the toilet to be the strangest thing in the world.
One thing that's not all that surprising is just how many of them had their minds blown by our portion sizes.