None of my friends would let me, even if I asked them. And I sure can't ask my parents. Gmail won't create the account without a phone number, and I don't have access to a payphone, much less the number to one. It's driving me insane. Yahoo won't work either.
Google needs to know if you're real or not, ask someone you know his cellphone for some seconds...
That's on the Google guidelines (http://mail.google.com/support/bin/answer.py?answer=114129)
Signing up without a phone
If you don't have a phone, you can use a friend's number to request the code via text message or voice call. You don't have to worry about your friend's number being attached to your account. Google won't use this number for anything else besides account verification.