‘Mark Jurey's penny stove‘ oh lord! If the virus doesn’t get you the fire you create in your house with this surely will. Not for nothing, seriously do not do this in the house, on top of your non-functioning whatever stove. Maybe in the sink? Or better outside like the backpacking stove it is meant to be used as.

I actually have one of these I made from Guinness and soda can. It has absolutely no safety measure to prevent spilling the fuel. Tip that little can over on the top of a regular stove and you have a fire inside your stove. Ieeee

My electric stove is by necessity fireproof, as is my girlfriend's gas stove. If you have a combustible stove (!?) then the sink is a better idea, like you say. Or possibly the bathtub. Or the back yard. This is less of a concern for me because my house is not made from combustible materials.

I have in fact had a raging alcohol fire on top of another gas stove due to spilled fuel (for reasons much more stupid than cooking over a camping stove in my kitchen). Things stored above the stove started to burn (more stupidity). But because my stupidity didn't extend to using something like gasoline or lighter fluid, a cup of water instantly extinguished the blaze. Now I have an ammonium phosphate fire extinguisher in my kitchen. You should too.