How many of you grease your own trailer axles?

Ex stepdaughter would break a glass or bowl and respond "**** happens". Drove me nuts when the ex bought glass bowls and her daughter broke all six in 6 days nuking eggs to make an egger sandwich for breakfast. You would have thought after the first 2 she would have caught on but nope. **** happens.
Just have to keep a close eye on things. I like to pull into every rest atea with the car trailer just to check tie downs, tires and bearings for getting hotter than normal and that the lights are working. Usually about an hour of driving between checks. MT trailer I will drive at 110kph which is about 70mph. With a car or my subcompact tractor on I keep it down to 55mph. The people that blast down the highways at 90mph are generally the ones that have the problems.