Happened to me once before quite some time ago. This evening after work, car won't start. All lights working, horn working. No sound at all when I turn the key.Called roadside assistance and they sent a mechanic. Tested my battery ok. Connect his batter to mine and try to start, also cannot.He thinks its the starter. So cannot do anything, take taxi home, think how to solve problem tomorrow morning.Any ideas what could be the problem? This morning I went through a pot hole in the road . Wonder if that can cause something come loose. Tried pushing all the fuses in but still no luck.