Just because you've been scammed in the past....does not mean you ought say "I don't accept relay calls". What if the next call is actually a deaf client? You'd get scammed if the Nigerians got the info they're looking for in a phone call. The worst you can do is talk to the caller. They're calling about your dogs....not money. If it's nothing about the dogs, ease out of the call. These Nigerians can do nothing if you refuse to give out info...... You can report them to the police if they try to scam you again. Come on.
Then again, I am not in your shoes......but Lucia's right. I get hung up on just because of people like you and I resent it. I'm no Nigerian but when I get hung up, I practically YELL at the caller that I'm a customer of so-so and if they really value customers, then $^#*^R take the call! Sometimes relay actually help with this when I give them a heads up on what kind of info I'm putting out on the call.
I just HATE having to make phone calls and wait, wait and then get hung up on. Just a big pet peeve of mine......don't mind me.