I never even thought about the possibility that the t-shirt inside the box might not be my size. I was probably in my late teens, just left home at the time,

I never even thought about the possibility that the t-shirt inside the box might not be my size. I was probably in my late teens, just left home at the time, such considerations were life-knowledge yet to be learned. The T-Shirt was just the right size. I suspect the standard deviation for late-80's early-90's teen geek body type was smaller than one might expect today.