Super Acid

One time my friend’s parents got him this chemistry set and he was mixing these chemicals in a glass beaker and he made an acid so powerful it burned through the jar, through the table and through the floor. He went down in the basement and it burned through the concrete and made a really deep hole, so he tied a hammer to a spool of fishing line and lowered it a thousand feet down. He ran out of fishing line before he found the bottom, he thinks the hole went all the way to the center of the earth, but his dad cemented over it so the cat wouldn’t get in there.