It didn't dawn on me until afterward, but my dog (mixed German Sheppard/Collie) jumped on me (never does this...ever) right before my first stroke. Then she did the same right before the second as well. I really think she knew they were about to happen and she was trying to get me to sit down before they occurred.

She's a great dog, 14 now and moving mighty slow. But I will never forget these incidents. Dogs are capable of much more then we know.