[ WP ] A teenage boy 's heaven is a war veteran 's hell .

15-year-old Jason Martin has been living with his paternal grandparents since his parents divorced two years ago. Like many other grandparents, Joe and Martha loved to spoil their grandson. 
 
 Jason was especially close to Joe as they had many common interests, such as fishing, hunting, going to movies and playing video games. Joe was somewhat out of the loop with video games due to the generation gap, but he nonetheless did his best to enjoy them with his grandson. 
 
 Like many other kids his age, Jason had the latest and greatest Xbox 360 games. He and Joe especially loved playing *Skyrim* together. The *Guitar Hero* and *Rock Band* games were a little too much for Joe's not-so-nimble fingers, but he did his best to have fun - even though that meant losing terribly. The premise of *Portal 2* was too confusing for 65-year-old Joe, so he mostly just watched. However, whenever Jason started up a *Call of Duty* title, Joe would get up and head to his room. 
 
 Jason did n't think much of it at first until he noticed his grandfather leaving every time he started playing a *Call of Duty* game. One day, he decided to invite Joe for a game to see what would happen, and he went to knock on Joe's door. 
 
 `` Come on in!'' 
 
 `` What's up, Grandpa?'' smiled Jason. `` I was wondering if you'd like to play some *Call of Duty: Black Ops 2* with me.'' 
 
 `` Come over here, my boy.'' Joe motioned for Jason to sit with him on his bed. `` There's something I've been wanting to tell you for some time.'' 
 
 Jason was a bit puzzled. `` Yeah?'' 
 
 `` There's a reason I do n't like shooting games very much.'' 
 
 `` Why's that?'' 
 
 `` Son, do you know what PTSD is?'' 
 
 Just then, Jason realized why his grandfather did n't like those games. He suddenly remembered that Joe had served in the Vietnam War, and had seen some rather nasty things overseas.
