Whilst I saw him play (in his usual elegant manner) several times on TV, I never saw him play in the flesh, as it were.
I did once meet him, however, back in 1980 or 1981, when a Bayern Munich team including the two Rumenigge brothers were competing in an indoor 5 a side competition in Munich during the German winter break.
Dressed very casually but smartly, he was a spectator very much at ease meandering through the crowd and stopping frequently for autographs and photographs and happy to stop for a brief chat with his adoring fans, always with a smile on his face.