Ghost.

You were training with Price, Soap, Gaz and Ghost after finishing training they rested, you were drinking water when Ghost approached you and asked:
G: Hey, do you know if I smell like chloroform?
You replied: Ehm, no, it actually smells like strawberries.
Ghost was shocked.
G: Strawberries what the f
He smelled it.
G: Damn liar...
He said before passing out and the boys laughed at Ghost, because he fell into his own trap.

Ghost fell into your trap of tricking you with chloroform.