Don't mix. And no, this was not me.
But the five -year old inside me: well, he thought it was spectacularly cool! . . . .
An acquintance took out is train set for the holidays (O-27 track, a Warbonnet F3 and three passenger cars - old, no sound, magnetraction) and set it up around his tree. The track was tarnished and he had already cleaned it briskly with steel wool before we stopped by last night and i could have told him maybe that was not a good idea . . . .
Anyway, the magnetraction picks up the steel wool splinters and sections that break off from the steel wool and fell around the track as it was used. It pulls them to the wheel's surface so it has something like a beard on each wheel. Doesn't seem to hurt the loco or get in and jam gears. it runs fine, believe it of not.
But as those tiny metal splinters spin around each causes a brief short circuit between wheel and loco body or wheel and center rail, etc., instantly ignites that steel splinter in a bright flash, sometimes with a tiny pop. The result is a loco that runs down the track trailing a big shower of noisy sparks.
Boy, wasit fun to watch! His two boys think it is so cool that they constantly renew the the supply of wool splinters by cleaning the track every few minutes.
They had been doing it for an hour or so when we stopped by last night.
I would have warned him about fire hazards if his tree was real and not plastic. However, I chose not to tell him what I thought that was probably doing to his carpet . . . .