Still don't own L4D. This is my theory on how Ellis got his hat(other than him having it already.)
"Aw, c'mon, Kieth. Yer leavin' now?" The brunette asked, standing in the doorway of his friend's room.
"Yup. Ma said that I might as well, wit' all 'f the infected runnin' around." Kieth packed a few more things into his suitcase. "You should come wit' me.
Think 'bout it. We'll ride in a whirly-bird!"
"Temptin' as that sounds, can't. Business's boomin'. What wit' all of the pe'ple 'vacuating, lots've come ta fix up their cars." Ellis shook his head. "Kinda sad ta think that I won't be able to see ya any more."
Kieth paused, holding up a blue and white cap. "Bet yer door is always open, huh, Ellis?" "'Course it is."
"I'll bet tha' yer gunna get real sunburnt, huh? 'Specially since yer gonna wait ou' here fer a while, then head ta the evac?" "I dunno. Guess so." Ellis scratched his head. "I can't really. 'Therwise, they'll think I'd be 'nfected."
Kieth laughed. "'Guess I'm done packin'."
"Wha..? Already?"
"Yup." He grabbed the suitcase and pat the mechanic on the head. "'Guess I'll be goin' now."
"Hey," Ellis fist-bumped his good friend, "Y'all take care now."
"You too." He walked past Ellis, but paused. "Here, yer gunna need it more than me." He tossed him the hat.
Ellis looked at the hat, unbelieving. "Naw, Kieth, I can't take this. This is yer lucky hat!"
The redhead laughed, "You can bet one of yer brown locks that yer gunna need it."
"...Thanks, Kieth." Ellis said, putting the cap on his head.
"But.."
"But?"
"When we meet up again, you'd better give it back. 'Kay? Otherwise you can kiss those tickets to Midnight Riders goodbye."
Ellis laughed, "Alright. That's fair."
He walked outside to Ellis' truck, waiting for the mechanic to take him over to one of the many CEDA evacuation centers.
Thinking back to the event, Ellis laughed as he remembered the even. "Kieth was right." He thought.
He laughed.