How to handle the error: Unsupported method 'BitTorrent'

[Khemara Lyn <lin.kh@xxxxxxxxxxxx>]

Dear All,

How can I handle this error in Cache log:

parseHttpRequest: Unsupported method 'BitTorrent'

Is it serious or does it affect Squid performance? 

I am using Squid-2.7 compiled from source with transparent proxy and talking 
WCCP2 to a CISCO router.

Can I tell Squid to immediately drop any invalid request or unsupported 
method?

Any input will be much appreciated.

Thanks & Regards,
Khem