That's a salt!
He had a very esteemed colleague.
Because it was Na HA! Get it? Because Na=sodium and N/A=not available. Seriously, this is good clean fun.
Same reason children don't attack their parents...
Wife asks her husband: Honey, If a lion attacks my mother and I, Who would you save first? Husband: Well, the lion!
Because they take everything with a grain of salt.
When you're buying salt.
He enjoys the taste of Doctors Without Borders.
Underlay! Underlay!
