One of my favorite German idioms is “having pig” (Schwein gehabt) = got lucky. But this little piggy had none.
Normally quite Tierlieb (kind to animals), Germans verstehen kein spaß (can’t take a joke) when people, or in this case pigs, start rooting around in their butcher’s shops, in broad daylight, frightening customers and taking employees hostage and stuff like that.
So this Wildschwein (wild boar) got the Wild West treatment and was, well, butchered at the butcher’s shop–bang, bang, bang!
Personally, I find this “under all sow” (unter aller Sau) = beneath contempt. I mean, all he was doing was “letting the sow out” (die Sau rauslassen) = painting the town.
“Das stattliche Tier war geradewegs in eine Metzgerei hineinspaziert und hatte das Personal und eine Kundin in Angst und Schrecken versetzt.”
Observing Hermann 
A guy comes into a butcher shop and asks for half a pig (“ein halbes Schwein bitte”).
The girl behind the counter answers: “What do you want with that, it will fall over immediately.”
It’s time for a poetic recitation. Ahem…
Who let the dogs out(woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
When the party was nice, the party was jumpin’ (Hey, Yippie, Yi, Yo)
And everybody havin’ a ball (Hah, ho, Yippie Yi Yo)
I tell the fellas “start the name callin'” (Yippie Yi Yo)
And the girls report to the call
The poor dog show down
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
I see ya’ little speed boat head up our coast
She really want to skip town
Get back off me, beast off me
Get back you flea infested monger
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
I’m gonna tell {Hey, Yippie, Yi, Yo}
To any girls calling them canine {Yippie, Yi, Yo}
Tell the dummy “Hey Man, It’s part of the Party!” {Yippie Yi, Yo}
You fetch a women in front and her mans behind {Yippie, Yi, Yo}
Her bone runs out now
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Say, A doggy is nuttin’ if he don’t have a bone All dogy hold ya’ bone, all doggy hold it
A doggy is nuttin’ if he don’t have a bone All dogy hold ya’ bone, all doggy hold it
Wait for y’all my dogs, the party is on
I gotta get my girl I got my myind on
Do you see the rays comin’ from my eye
What could you be friend
That Benji man that’s breakin’ them down?
Me and My white short shorts
And I can’t seek a lot, any canine will do
I’m figurin’ that’s why they call me faithful
‘Cause I’m the man of the land
When they see me they doah-ooooo(howl)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
I say it’s ART!