Because he didn't have any frets.
2. What's the difference between a guitar and a fish?
You can tune a guitar, but you can't tuna fish.
3. Why did the guitarist keep missing his chords?
Because he needed glasses.
4. What do you call a guitarist who never plays his favorite song?
A one-hit-wonder.
5. Why was the guitarist arrested?
Because he was fingering A minor.
6. What's the best way to get a guitarist's attention?
Scream, "Free beer!"
7. Why did the guitarist throw his watch out the window?
Because he was watchin' them go around.
8. Why did the guitarist get sued?
Because he hit every note except his wife.
9. What's the best thing about playing guitar?
When you're finished, you can use it as a weapon.
10. Why did the guitarist get arrested?
Because he rocked too hard.