I love these kinds of calls.
I once told a woman who was calling I'd buy their services if she'd cyber with me via webcam and then I'd start making grunting noises like I was already masturbating to her on the phone. "Hurry up, I'm almost there!"
Telemarketers hate me.
I once had one convinced that I was a doctor and was diagnosing him with throat cancer over the phone because I could hear a weird sound in the way he spoke. Poor guy actually bought it and was really freaking out at me on the phone.
I once had one call me right when I was headed to the bathroom. So I took the phone with me, put in on speaker, and sat there talking while sitting on the pot. I had spicy food the night before, it was a rather colorful show for the caller.