What is scratchy blanket syndrome?
It's an extreme state of ingratitude. For example, let's say that your house burned down on a cold night. You only have the clothes on your back and no coat whatsoever to speak of. Your neighbor drapes a heavy wool blanket around your shoulders.
The first thing you notice is not the kind gesture of your neighbor nor the warmth of the blanket...but, how scratchy it is.
"This blanket is scratchy." You snarl to your neighbor.
You let the blanket fall to the ground and step over it...because it is scratchy after all.