Birthday Burp

People may think I'm crazy, but my Dad gave me a birthday greeting today. I admit, it was an unorthodox one, but it was him.
Pat and I went on a long bike ride and when we got home I showered so I could go to work. When I got out of the shower I heard a masculine burp in the bedroom. Thinking it was Pat, I started talking to him. I didn't get an answer so asked Pat where he was - downstairs. "Did you just burp?"
"No"
We were the only people in the house. I know it was Daddy's goofy way of wishing me happy birthday. Yeah, I know it's weird, but I believe he was here for a moment.