That's all in your head TP. :-þ
I think there was a faint smell of gasoline almost everywhere in the house, and I liked the minder and it was cosy inside and these were good times, so I associate that smell with good times.
Later, when I went to school, it was popular among the kids to have felt-tip pens with various smells (chocolate, strawberry, etc.). You were actually encouraged to smell the pens. That couldn't have been healthy, could it?