List of people that Object needs to slap

Ahhh, but you can.

The only place on the body that you can genuinely tickle yourself is on the roof of mouth, in the centre, forward toward the teeth roots.

Try it.

Interesting, but I'm defining tickle as 'hand-generated', so sticking with current neuroscientific law.

I get the same tongue-generated tickling sensation when applied to other parts of my person, which you're welcome to visualise...