Most Hilarious Bumper Stickers

Some of these I have seen. I actually have or had three of the ones that I added originally.
The Top Ten
1 If this sticker appears blue, you need to slow down
2 Due to Quantum Nonlocality, I may be here... and there... at the same time
3 I don't have a short attention span, I just- Ooh, look, a squirrel!
4 Stick to the speed limit: 299,792,458m/s
5 Alcohol and Calculus don't mix; don't drink and derive

I adore this one!

6 I drive like your Mum
7 You can only be hit by me if my car is stationary
8 In order to avoid a violent death, stay away from the pavement
9 How many roads must a man drive down before he admits he is lost?!
10 This isn't rocket science, damn it, it's a safety feature!
The Contenders
11 How's My Driving? Dial 1-800-BITE-ME
12 Do you believe in the afterlife? Mess with my car, and you'll find out
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