When I was a child growing up in a village in the Swiss mountains, funerals were a bit like cockney ones, with a black horse and wooden hearse. The body was picked up from their home, and the family and other mourners following behind all the way to the cemetary. I can still hear the drum being played at the front of the cortège. As kids we had to stand still by the roadside and bow our heads until the last mourner had passed. Nothing about touching the collar though.
Funny our superstitions are often local, and do not mean anything elsewhere. Our cleaning lady, who was a Geordie, nearly had a heart attack when she saw that I had a vase full of fresh white and purple lilac indoors - she said someone was going to die and I had to take the flowers out - nobody died, fortunately, well not close to us or her