I am uncomfortable. I feel in the position of an agnostic who has been asked to praise God close to the beginning of a religious revival meeting. Unfortunately, as far as mergers at high redshifts is concerned, I cannot bring myself to do this. Instead, I propose to present you with evidence that peculiar phenomena are occurring in the most distant galaxies we can study. According to your degree of faith in the “Book of Mergers”, you can decide whether and to what extent the processes we observe reflect interactions between galaxies and protogalaxies. Sticking to the catholic sense of the title assigned to me, I shall however show that some high-redshift galaxies are definitely interacting with themselves.