I am making some breadboards for Christmas, and I want to put some short feet on them like shown in the drawing. The only accident I have had in the shop that was more serious than a staple through the finger, happened using a stacked dado set. I nearly lost a finger. I never figured out what caused the accident, so I am now extra careful with a dado set. My question is, is it safe to cut a dado with the blade set at an angle, leaving a dado like the one shown in the pictures. There is a nagging in the back of my brain that says not to, but it may just be the hamburger finger from years past talking. Thanks for the help, and sorry for the lousy drawings.