Can I take it we're still talking fly tying here
I would say so Peter.................
It seems John reaction was brought on by certain 'old feathers and deer hair' so my 'road kill' was an alludation to natural materials that aren't stored or treated correctly - something which could easily occur if someone were to, for example increase their inventory from a poor source or indeed road kill.
He also mentioned tying with the use of a face mask which linked my thoughts to a story (from a reliable source) that I heard about someone who used to wear swimming goggles whilst trimming a certain material due to the fine cut fibres becoming airborne and irritating the eyes (optical orbs).
further information can only be divulged via pm to protect the identity of the person involved.
Haven't you got marking to do?
Iain