That time we need to test for some gas, and need a concentrated
acid. Can't remember the name of the acid, but when heated with
metals, will produce a gas. Well, that acid is really concentrated,
one drop on the table and that part melted. So it's no wonder. He
didn't point at anybody, but when it exploded, it hit everyone in
front of him. The ceiling is still black in colour to remind us of
that freak experiment gone wrong.