A Tap on the Shoulder

hi this is the second message I sent to this site its very cool.

OK, lets get to the point. This one night my dad was in the kitchen having a glass of milk. My sister, mom and I were watching TV in the bedroom waiting for my dad. When my dad was drinking the milk he felt a tap on his shoulder.. He looked back and he saw nobody so he ignored it. 5 seconds later he felt another tap on his shoulder, so he put the glass down and just ran to the bedroom. He told us that when he came up. The next day we found out a friend of my dad was murdered.

Is it possible that it was a way of saying good-bye?

(Yes, that is a fairly common occurrence. Unfortunately, most of us do not realize it when it is happening and only later do we put the pieces together. At least he got to say good-bye. Chills...)