This is why watching the 'Lion King' can get you in trouble. You watch a movie your whole child hood and think Pumbaa is friendly and lovable. And unless your Scar or a Hyena that is true. However, in real life warthogs are not. They're not about the cute and friendly life. You think them having tusks are for show? Nah, they're for destroying whatever they attack.
Why would this dude seriously think about petting a wild animal? But then again people are stupid.