He and his wife frequented the same restaurant my boss and I did in Encino. It wasn't unusual to see celebs who lived in that part of the Valley at Stratton's. The boss and I were regulars there and were friends with the owners as well as many of the staff. We saw Crosby there often but never interacted. We just happened to be there the evening of my birthday, hadn't planned on any sort of birthday commemoration but it turned into a mini celebration. Unbeknownst to me the manager asked Mr. Crosby if he'd sing happy birthday. I was pretty shocked when he sit down at the piano, started singing happy birthday and figured out it was directed to me. Afterwards, he walked over and visited with our group for a few minutes. After that day, when he and Jan would come in, if we were sitting at the bar they'd always stop by and exchange a few pleasantries before heading to their table. He seemed to be a genuinely nice guy.