Pretend to be an old age pensioner with a low IQ.
"Oh, you're giving me a free
computer! I've always wanted a computer. Do you give pensioners like me
free lessons because I can't afford to pay for anything. I'm just about
to cook my only meal of the day. It's a can of dog food that I put in
the microwave. I've gotten used to microwaved dog food. It's better than
cat food. I've tried both. Ow! My arthritis is playing up at the
moment. And I think I've got to change my incontinence pad soon cause
its leaking all over the place. There's a huge puddle on the floor. How
do you clean urine from shag pile carpet? Who are you again? I've got
problems with remembering who I'm talking to. .. etc etc etc"