Beware of large surface areas presented by fibres, and stuff like cotton wool.
More insidious than cyano, but equally tricky because of that, is oil based paint on cleaning cloths. The paint cures by oxidising slowly. This is heat generating, usually slow enough to not be a problem. But give it a little help (e.g. scrunched up cloth in sunlight with not much airflow to cool it) and it can warm up to its flash point, when it will "spontaneously" combust. Fortunately not likely with the quantities that modellers generally use.
Anybody remember the "Supermodels" series? The one where they were glueing foam wings using PVA? And using a "quick dab" of superglue to kick it off fast? From memory, that looked like a plentiful source of fumes.