You've know that you play too much TF2 when ....

[Black cat]

When you hurt yourself and you start running around yelling "Docter!"

When you tell your Docter to make sure that's medicine.

When you take a run-up and try to double jump across ditches.

 

[bLackout {RD}]

When I/you owned half of the other team.

 

[!Woodstock!]

Thats a good one bLackout.

 

[GenesisEDIT]

1. Yelling "Spy sappin' mah mouse" when your mouse batteries dies.
2. Same as above but with keyboard
3. When you dress up as any TF2 class. >.>
4. When your computer simply says 'No'.
5. When you try to dance like the Engineer.
6. When you think the Engineer's dance is cooler then the Moonwalk.

And my final:

*drums*

7. When you get injured and yells: "Spy sappin' mah healthbar!"