You learned to turn the heater on by headbutting it? It explains the last few days, when DH and I both thought we were going mad, but this is not entirely a good thing. Yes, you sauntering in, thumping the heater with your head and settling in front of it as I stared was not something I see every day. No, it’s not something all cats do.
Sadly it’s not going to work much longer, as we’re now turning it off at the plug as well, and I’ve moved the plug to a socket out of your reach.
(Please, please don’t learn to transfer that skill to wall plugs. Please.)