My dad used to tell the ultimate dad joke passed on by his Native American father from Arizona. ""You boys know how all these cacti got their name?"" *sigh* ""No dad how did they decide on a name?"" ""Well, when the first Native American tried the water from them, he exclaimed 'Yucca!'"" (Yucca is the name of an abundant species of cacti found in Arizona) (I cringed when I heard this and I loved my grandfather very much so I understand any negative reaction)