This is actually a psychological phenomenon. I have literally watched someone experience an issue I brought up in conversation that they swore they never encountered, and then feverishly try to hide its occurrence. Even worse, after the observed occurrence, they continued to deny their device ever exhibited the behavior.
It is a way for them to feel and/or "prove" they are superior to you. I would go so far as to say it is likely a symptom of an inferiority complex of some sort.
Here is what they are really saying, in my experience and opinion:
"I have the same device/car/widget and I have NEVER had that happen. Sucks to be you... maybe you're doing something wrong or you're such a loser that your luck is just that bad. I on the other hand am clearly more loved by the universe and do things better than you. Shame you aren't like me. I know you want to be me... it's natural. Everybody does."