Ha,Ha! I have trouble remembering to bump my needle over a bit to get the correct 1/4" seam allowance--not embarrassed by that at all---but about 1 out of every 5 times I use my built-in walking foot on my Elna Quilt Pro Queen, I forget to pop the presser feet arm into the walking foot and takes med a while to figure out why the darn thing just won't "go"!