I went through MC on a MR March 2007 and had absolutely no problems with immigration or customs when arrivin in MUC. On my departure I had no problem with customs but did get 5 minutes of questions and my bags being searched a second time. The person checking documents at the gate simply couldn't believe a 1 night stay but after she looked at my itinerary I had no further problems and though I hate being asked a lot of questions this security person was polite and simply explained that all the questions were because of my unusual trip. Compareed to the UK where I get asked about whether I illegal drugs I would much rather deal with MUC security personell.