Colored squares in toothpaste tubes function as marks for manufacturing machines.
For the longest time, people thought these colored squares indicated whether the toothpaste formula was natural or purely chemical. But the truth is they don’t have anything to do with the paste’s composition. These shapes were placed there to be read by machines during manufacturing, and their main purpose is to indicate which part should be cut, folded, or sealed.
smarter individual would use the other hook instead of a key....
Just screw it in by hand, it isn't that difficult.
#2 not sure it would work. cars have safety glasses which prevent shattering. you can buy special purpose hammers though.
WTF? Spell much?