Muller + 3
Some years ago it was required in General Aviation in Germany to call Info at small airfields and report the name of PIC + persons on board prior to departure. At big airports, the PIC had to fill out a form at the terminal before departure.
One day, this was heard on the ground frequency at DUS:
Pilot 1: "Düsseldorf Ground, ehh, this is D-EABC, ehh, Cessna 172, emm, Muller + 3 to Mönchengladbach, emm, request taxi."
ATC: "D-EABC, taxi runway 24 via M, cross runway 31."
Pilot 1: "D-EABC, ehm, taxi runway 24, emm, via M."
Pilot 2: "Düsseldorf Ground, ehh, this is Lufthansa 123, ehmm, Boeing 737, Huber and Schmitz + 125 to Berlin, ehmmm, request start and push..."