Yeah, I'd say after welding once in your flip flops you will be dancing around and wearing leather shoes/boots. Even the mesh tennis shoes let nasties end up laying between your toes which result in some pretty funny dance moves.
If your saw is spinning fast enough to use an abrasive blade, DON'T use a "metal" blade for steel. You CAN use a carbide tipped blade to cut aluminum spinning that fast.
When using carbide tipped blades to cut metal, make sure you have good coolant flow to keep the blade tips cool.
