They had been drinking, and I barely was able to shake them awake. While my own family does not smoke, which decreases the risk of a fire, there are other things that cause fires. Sometimes it is from faulty electrical wiring. It could also be from hazardous chemicals placed to close to heating elements. These are not unusual things.
Latex paint is highly flammable.
Most of our garages are filled with hazardous materials. They should be stored in a shed away from the house. Nothing flammable should be placed within 3 feet of our furnaces or water heaters. Junk should not be piled up in our basements, where if it caught on fire, it would quickly create toxic smoke that could rise and kill us while we are sleeping. Buy some fire alarms.