May a non-Jew participate in any of these parts of a Jewish burial (assume there is no separate "funeral" in a home and everything is graveside?
- Hesped - giving the main "speech"
- carrying the coffin
- assisting with lowering the coffin into the grave
- shoveling dirt onto the grave
- reciting Kaddish if he can read Hebrew but none of the mourners can. (Obviously, he is not part of the minyan.)