Thank you all! 
It was 30 C and nobody bothered a chilled free drink, so 11 YL’s and OM’s accepted my invitation and showed up on the summit. We activated a bit off the summit, since Bröhn (everybody just calls it “Annaturm”, that’s the name of the summit tower) is very popular and due to the woods there is not much space to deploy antennae. So “Deister Nordblick” was chosen, a little-known spot on the eastern slope.
Condx were lousy. DL1CR/p on DM/NS-121 was my first QSO on 40m SSB and finally the complete of Fast, the summit I activated most. This took 5 years and 33 activations. G0RQL and EA2DT were next, either barely readable in the noise. No more stations came back to my CQ’s. I then qualified the summit with SK6SAQ, the club station at the Grimeton World Heritage site. She had a huge pile up and came back to me on my first call - a QSO I will always remember. 
Goat beer for a thursty goat
Now that Mountain Goat is achieved, I’ll have to make up new portable challenges. Hard to imagine that these won’t be carried out on a summit. Anyone for a MS S2S challenge during the 2020 Perseids? 
Ahoi
Pom
PS: To our OK friends, I know you just don’t drink Kozel. It was only for the word play on a special day. 