http://www.songtexte.com/uebersetzung/mani-matter/i-han-es-z...
I figured as much from listening to it, thank you for finding the words to the song, it's a lot easier to read than to hear for my non Swiss-German attuned ears.
In a weird turn of events, when he lived in the U.S. Kreisler must have crossed paths with Lehrer, as they both became famous for a waltz with the same title — Kreisler's "Tauben vergriften" and Lehrer's "Poisoning pigeons in the park". It's not clear who copied from whom.
That said, given his last name it is very well possible that Lehrer visited Germany and that he speaks/understands German.
Interesting!
Edit: Looking some more it seems that Lehrer's version is from 59 and Kreisler's from 63.
Madeira m'Dear?, All Gall, The Gas Man Cometh, Bedstead Men, A Song of Patriotic Prejudice, and (especially) Twenty Tons of TNT are some personal favourites.
Disclaimer: I can't say if this is really an influence or just a similarity.