After telling the kid his favorite bed time story – three little pigs, he’s looking around before sleeping. When he saw the digital clock he said “What is that mama? It’s one zero polka dot PM?”   So, I told him that it’s a digital clock and the time was 10:23pm. And the two points were not polka dots because it was colon. He then replied, “Oh, so digital clock is different from the clock with hands in the kitchen. Oh okay, goodnight mama!”