Dancing Chips / How (Not) To Abuse A Horizontal Mill As A Circular Saw

Don't do this at home! (Unless you hate your neighbours :-) )
Cutting a 3 mm mild steel plate with a slitting saw on my Thiel Duplex 158 in horizontal mode. The job was pretty noisy and created dancing chips due to the quick and dirty setup. I don't recommend doing it this way. Clamping a parallel underneath the plate helped (at bit).