4.
This drug dealer who was a little too under the influence:
5.
This "cleaning" device:
6.
This poor person who didn't understand how a Swiss Army knife works:
7.
This person who underestimated the power of a comma:
10.
This economic lesson:
11.
This guy who doesn't understand how language works:
15.
This person who doesn't understand how numbers work:
16.
This person who just wanted to declare their love:
19.
And finally, this compatibility issue: