I Before E...

Everyone knows the cutesy rhyme:

I before E,
Except after C

And most people know the next part:

Or when sounding like A
As in "neighbor" or "weigh"

But that isn't really thorough. Here are a few exceptions to the rules:

counterfeit
forfeit
either and neither
height
leisure
seize and seizure
weird

If you want to be really confusing, use a sentence like:

My neighbor is weird, because he likes to seize counterfeit bills as a leisure activity and test either the height or weight... or neither.

Although that sentence is only really confusing because it doesn't really make much sense.

Measuring the height of the counterfeit cash... for leisure?