Outsorced Lifeline

I was depressed last night so I called Lifeline.
With outsourcing, I got a call-center in Pakistan. I told them I was suicidal.
They got all excited and asked if I could drive a truck.

I didn't get this joke, but it looks pretty funny. Are their truck drivers realy suicidal? Maybe their trucks break down a lot? And the traffic is heavy? Haha! Why would someone want a suicidal truck driver if they are not ... Haaa, got it! But won't tell you! Haha! Figure this one out for yourself.