I ran out of barbi' lighting fluid once.....
So poured a VERY small quantity of 100LL fuel from the 'for disposal' jar over the dry coals and let it soak in. Then, to get it going, a little surgical spirit was also poured over.
Standing at a safe distance, I lit a match, then at arm's length holding it in barbecue tongs, held it over the coals...........
Well, yes, they certainly lit. A spectacular WHOOMPH and all the coals lit simultaneously! NOT the most sensible way of lighting a barbecue and DO NOT try it!
There's so much ludicrous huggy-fluffy Health and Safety bull$hit these days that it's simpler just to pour the fuel from a clean, sediment-free fuel checker back into the tank UNLESS there's any water in it.