I have never used this technique on people before. How exactly is it supposed to be used? I am confused on how it is supposed to be delivered. Is simply agreeing with them adequate? As in "Yeah I can be a jerk"

Or is it supposed to be sarcasm like "Yeah I can't drive. As a matter of fact I tend to get in a accident or two everyday".

As you can see I poorly calibrated with this at this time and need some help with learning the delivery. And if it is sarcasm or just actually agreeing. Or do both work?

I have been told this is how you deal with shit tests from people.

Thanks