There are reasons certain bottles have warnings on them, although they obviously can't take into consideration all possibilities. I imagine few chemicals would warn you not to use them on an air mattress and then use an electric air pump to fill it the next day. But apparently some bottles do need this warning, because a guy in Germany has managed to blow up his apartment with some car tyre solvent, an inflatable mattress and an electric air pump.
I'm sure there are many other interesting combinations of household goods that can have similarly catastrophic consequences, but I'm not going to try.
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