Bobbi, a mate of mine at school, son of a well-known family supermarket chain in your neck of the woods when you were young, did something similar.
We were studying organic chemistry for A level and had to make nitro-toluene in the practical. Normally the chem master would have picked up on what P did as he was somewhat of a hawk (and a really good teacher). However, P went one stage further and produced trinitrotoluene and smuggled some out, along with a magnesium strip for a fuse.
Put on the house boiler room doors and, stand back, it more than worked, a nigh on three foot smouldering hole appearing in the upper part of the doors.....'How are you going to explain this to Mr. M, P?" Today he would be on a Prevent list or worse...back then it was 'boys will be boys'.