... guess I'm NOT as metric as I though I was.
Yet MORE reason the DFU must die!!!
I think wholly imperial for screens' diagonal size, bass loudspeakers, construction nails, and, in the spirit of Larry Haun; "tubafor". I might refer to IEC 60297 enclosures as 19" racks, in passing. I've got UNC, UNF, UNEF, BSP, BSPT, BSF, BA and Whitworth fasteners and associated hardware. They mostly are handled with their native measurement units, but never without a mental envelope calculation involving multiplication or division with 2,54.
The rest is metric. Especially in the kitchen. Fuck ounces and gallons.