Don’t do that - people will think that your either retarded or mentally unstable.
Also not a good idea - and seems to run counter to the stated goal
Pointless, as all the fat would absorb the force of the blow.
People already do that - it’s annoying and no one cares. You’ve never had a GF or wife?
You don’t have to say it - thinking it is sufficient. Besides, when people SAY this and other things, it’s a sign of a lack of confidence or faith in said concept. Speak softly and carry a big stick.