Laertes thinks that ophelia should have a better funeral service?

Answer 1

Indeed! Ophelia is being given a shortened funeral service out of suspicion that she killed herself. Someone who kills herself died in a state of sin, since suicide is a sin and there was no opportunity to be forgiven, and so she really shouldn't even be buried on holy ground. Someone's pulled some strings behind the scenes, so the priest is compromising by giving her a lackluster funeral. Laertes is upset at this disrespect toward his sister, just as he was upset that his father wasn't mourned with more pomp.

Answer 2

The priest has concluded that Ophelia committed suicide, and so by church law she is damned and is not entitled to a proper burial. There is, of course, the possibility that she died by accident; Gertrude's account of her death suggests that, but then again, Gertrude may be giving the story a spin so as not to anger Laertes, who is suffering enough.

Whether because of the way Gertrude told her tale, or because it is just too painful to think that after all the grief Ophelia had in her life, she must spend eternity in Hell, Laertes believes that she did not kill herself, and the priest is doing her wrong by giving her only "maimed rites". Hence he says, "I tell thee, churlish priest, A minist'ring angel shall my sister be When thou liest howling." In other words, it won't be Ophelia burning in Hell as far as Laertes is concerned.

Answer 3

She's lucky to have a funeral at all. She was suspected to be a suicide (and very possibly was) and they were not supposed to be buried with any sort of Christian rite. In light of her high station, the priest has bent the rules already. He says he can't bend them any further.

Answer 4

Because it was so theatrical and overblown. Jumping into her grave, really!

Answer 5

Hamlet killed Laertes' father. And then made jokes about it. Laertes had every reason to be miffed.