tamarack jack,
Spelling aside, the fact that Tim Horton's sends volunteers to Afghanistan is no deep dark secret. It's all part of the Canadian Forces Personnel Support Agency "serving those who serve" in retail, finance and support roles. These people go through the six week basic training and then go to the base at Kandahar.
There are several Tim Hortons outlets on bases in Canada, and the presence in Afghanistan is simply an extension of that.
No biggie really.