when you should just step away from your model? Everything you do turns to crap?
My ARF Nobler was all blue and needed something on the wing. I took out the kit decals and cut out the NOBLER decal. I put two dots with a marker where I wanted it to line up. After getting ready to stick it on I change my mind and used the leading edge as a guide. Did not take a second glance at the dots. One ended up under the decal. Great, now I just need to add more dots and dashes to spell out S.O.S in Morris code !

I then moved on to the muffler.
I was removing the muffler with a Phillips-head screw driver and the driver slipped off and I punched a hole in the side of my cowl. Great now I have a hole to run my pressure line thru.

( I just had it exiting out the heat venting and no extra hole required) Now I have a new hole.
I ran the line, and then put the model on the table. Turn off the lights and walked away.