What is a Fly Fishermans worst enemy?

[Abomb]

Sex.

That will only take up 15 seconds of your time though.

[Richard Torres]

Sex.

Without it you wouldn't be around to fish or listen to Jerry.

A flyfisherman's worst enemy??

The extinction of anything we fish for.......Now what do I do??

[Panhandle]

18.5 seconds, Aaron-- I timed it last night.

[fatguide]

Fly Fishing Forums.......we should be fishing damn it!

[Hem]

This computer,the internet,talk forums,reading and responding to retarded threads.No offense intended.

[junebug41]

Easiest question I've ever seen. By a factor of 100 over anything else, the natural, mortal enemy of flyfishing is work.

Honorable mention: Chafing

[Yooper]

How about an empty cooler!