Allan loves acetone. He has a big metal bottle of it that I'm pretty sure has been hand carried trhough more than one move. He loves to recommend acetone and a wire brush for cleaning anything. Including stinky boys as a joke.
Tom wanted to paint his pumpkin green. I had some paint that I used last year to make minion pumpkins so I mixed yellow and blue and let him paint the thing right on the front step. I remember that paint cleaning up easily. Apparently the surface type is a huge factor.
Allan told me the green drips on the step wouldn't come off easily or even at all. I assured him the hose would take care of it.
Sigh. Figure 1 is after a serious hosing. I had to resort to acetone and the wire brush. And worse I had to suffer through a major marital I'm right and you're wrong. And I will have subtle green drips to remind me of it as long as we live in this house.