Doodles on the Heating, Ventilation as well as A/C system

I enjoy my son easily much, but the way he finds a way to entertain himself is easily concerning, however i suppose he is picking his antics up on our cat, who also loves to get in trouble, plus I suppose they are now teaming up, however the dog destroys the toilet paper plus my son follows suit… Recently, drawing has become his up-to-date thing, and he started drawing on paper which was easily nice, even though I think he got bored with paper plus then moved to beginning doodling on the walls.

I scolded him plus told him only to draw on the paper, plus I even bought him his own drawing book.

Unluckyly for me, he seemed less than interested in it. He tried for a little while drawing on the walls behind my back, but his drawings were easily obvious. He eventually stopped, or so I thought, however eventually when taking out the trash, I happened to glance over plus notice my heating plus cooling system had bright colors scribbled all over it, but my oil furnace plus a/c were blocked in the corner of my garage plus mostly out of sight, so it can be hard to spot, but upon closer inspection, it had marker scribbles all over it. I instantaneously brought my son out plus scolded him again, I sent him to his room plus took away all of his markers. I then took a wet cloth plus thankfully the scribbles came out nicely, plus the Heating, Ventilation as well as A/C equipment looked almost brand new. I kept my garage locked for a while all of us were in case my son tried to go back plus do who knows what to the Heating, Ventilation as well as A/C system, but thankfully he seems to have forgotten about it.

oil furnace