The other day I saw a sign in Wal-mart: "No Return's on bicycles".
How about "their going to bring there pie on Sunday".

The most common mistake is mixing up "it's" with "its". Here's the proper usage:
It's raining.
Its balls are hanging loose.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL