Scottism

A fake disability exploited only when convenient in situations to excuse one's careless or pathological behaviors. Often, it is used to avoid taking responsibility for one's own words or actions.

"Dude I can't believe he lied to him in front of his own brother over the phone and said its no big deal and then went and stole from them in the same month!" "Well you know, he has Scottism so you really can't blame him."