I did something stupid the other night but I don't think I've been burned so consider this food for thought.
I was mixing up some epoxy and was planning to reduce it for use as a sealer. Well, my silicone and wax remover is in a can that is almost identical to the can of normal reducer. So not paying attention I reduced the epoxy with silicone and wax remover. Went over to the part I was working on and sprayed it. At that point a light came on and I realized what I had done. At first I thought maybe I should get the stuff off before it dries, but then I said "F#$% it" and went inside for dinner. I came back out and it seemed to be drying/curing like it always does. Two days later it didn't seem any different from the parts with properly mixed epoxy. So I'm going to roll with it.
I'm not going to recommend stepping on paint and primers with the wrong solvents, but I'm thinking this is inspiring a science project regarding pricey reducers versus cheap cleaners.