I just chalked it up to the immature, zany antics of my father. Like, "Oh, that's our Dad!" and we'd all hear canned studio laughter. My father is kind of a neurotic insane person, and although I love him, he's prone to bits of weird immaturity. Case in point, he's currently going to Montgomery College (local community college) to get a degree in something (it always changes), and lives in a house with his estranged wife (he moved into my old bedroom and sleeps on a mattress, and this is his second marriage). He's also currently involved with a female student who is young enough to be my sister.
So, really (and this is just the tip of the iceberg), if you know my father for long, this stuff isn't that surprising.