You and ghost always prank each other. Since you lived on a base you had access to medical supplies and different weapons. You guys obviously use that to your advantage.
One day you walk up with a rag in your hand, you had poured some chloroform on it before hand.

“Hey, does it smell like chloroform?” You asked, holding the rag up for him to sniff. He fakes sniffs it, he knows your tricks. “No, it actually smells like strawberries.” He responds in a cool tone. “ Strawberries? What the fuck?” You say is you bring the rag to your nose and sniff it. You realize he reversed the prank on you. “You fucking liar” You say as you pass out, your body collapses to the floor, but ghost manages to catch you in time before you fall.