1 dslr down

My team went to Iligan City to cover a wedding, we brought 4 dslr, ( 3 Nikon and 1 Canon ) in case something might happen we brought a spare cam. Well that day 1 cam had a shutter error again, i was a bit disappointed but i knew sooner or later that camera will later give up and it did. Good thing we brought another cam with us and we continue to cover the event without the guest knew what had happend. So to all those who might try to cover a wedding or any event that require one to deliver the goods, its best to bring 2nd camera during shoot.