What's this all about, Taco Bell?

Ok, I have no idea what is going on in this commercial, except that I think it's supposed to be funny that the dad with the look of total rage on his face is chasing a kid down the street, having come home early to catch him....um.....doing what, exactly?

Seriously, what set the guy off like this?  Chasing a kid down the street with a look on your face which seems to read "I'm going to kill you?"  So what- was he banging the guy's daughter?*  How do the giant tacos come in?  This is maybe funny in comic strips (you know, like Andy Capp being a worthless, unemployed drunk ignoring his wife funny) but probably not- and it certainly isn't funny in real life.  I mean, think about it- if you lived on this street and saw this guy chasing some teenager down the street in the middle of the night with that look on his face- well, would you find this at all amusing?  What would you do- laugh?  Call the cops?  Child Protective Services?  Or shrug your shoulders and mutter to your spouse "yep, there's Bill, he's going to kick the crap out of one of his daughter's boyfriends again. Same old same old?"

Now, we do see this little grin appear on the kid's face, perhaps to let us know that this is all in fun- he's happy with his pizza-sized taco thing, and he's getting away so easily that he even takes a bite as he dashes down the street.  But that doesn't really make sense either- ok, so he's going to outrun this guy.  Great.  Then what?  Is he going to call later and find out if the girl he was not supposed to be visiting survived Dad's rage?  Because she's still back there at the house, right?

Getting back to my original question- the parents came home early, and caught this kid doing something so out of bounds, so against the rules, that he felt compelled to make a run for it, and Dad is determined to catch him.  What was it?

Here's the saddest part-  that this is 2014, and the image of an enraged dad chasing some kid down the street with a murderous look on his face is presented as comedy.   Like I said- I just don't get it.

*Song lyrics:  "Your daddy's got nothin' on me...."  Ok, it's official.  I don't want to get it.