A recent post by "scottp55" https://forum.vectric.com/viewtopic.php?f=2&t=31377 brought to mind a project that went woeful wrong but was thankfully less than a 1/16" from disaster.
It was the beginning of the second side of a double-sided job. The hold-down failed and a 3.5" thick oak blank "walked" up the length of a bit projecting 3.5"+ Thankfully I stopped proceedings before the bit could encroach into the "model".
Steven