You say get a load of this when you want someone to pay attention to something exciting or interesting.
Mike, get a load of this: our friend Frank is being interviewed on the TV news right now!
Get a load of this: I've just found out that our teacher used to be a professional footballer!
The phrase take a load off your feet means to sit down and relax.
William, you look exhausted. Come and sit here. Take a load off your feet.
According to the Food and Agricultural Organisation of the USA, 85% of milk produced for human consumption comes from cows. However, buffalo, goat, sheep, camel, donkey, horse, reindeer and yak milk is also consumed by people around the world.