Even the worst guy in the whole company has to remind you that manners cost nothing. Similarly, at the end of the film, Dr Grant's reaction to Hammond's death park isn't a one full of expletives followed by a fist fight. Grant has been up all night in an attempt to keep himself and two children alive which isn't an easy job considering the park is full on carnivores and the three of them look like a very tasty treat.
"Hammond, after some consideration, I have decided not to endorse your park."
