That ol' saying

We have some sayings that have been around for awhile that we just say because we have heard them all our lives. But have you ever actually thought about what these sayings really mean and where they came from?

"You can lead a horse to water but you can't make them drink" - Are horses that dumb that they need us to lead them to the water. They are animals, I think they are fully capable of finding water on their own. And how would one forcibly make a horse drink water? I would like to see that.

"You can't have your cake and eat it too" - Why wouldn't I be able to eat my own cake? Why would someone give me cake and tell me I couldn't have any? If I get my own cake, you are damn well going to let me eat it too.

"The cat's pajamas" - If you ask someone if they liked something and they said it was the cat's pajamas, we somehow know they meant it was pretty good. Who are these people that are pajaming their cats? The world is filled with too many hoarders with 75 dead cats in their homes, we don't need people trying to put pjs on their cats too.

"A bird in the hand is worth two in the bush" - By bird do they mean penis?

"As happy as a clam" - I have conversed with many clam in my day and none of them seem that happy. Most of them come from broken homes or they are in bad relationships. The phrase should be changed to "As happy as a dog licking it's crotch."

"As easy as pie" - Eating or baking? Because they are two very different things. And I am sure that some pies are a lot harder to make than others. This saying needs to be more specific. Or maybe it was said by a mathematician and they meant easy as Pi.