"Some things you can't Explain" joke

A farmer was getting drunk in the local bar when a man came in
and asked: "Hey, why on this beautiful day are you sitting here
getting drunk?"
The farmer shook his head and replied, "Some things you just
can't explain."
"So, what happened that's so horrible?" the man asked.
"Well," the farmer said, "today while milking my cow she lifted
her left leg and kicked over the bucket."
"Okay," said the man, "but that's not so bad."
"Some things you just can't explain," the farmer replied.
"So what happened then?" the man asked.
The farmer said, "I took her left leg and tied it to the post on
the left."
"And then?"
"Well, I sat back down and continued to milk her. Just as I got
the bucket full, she took her right leg and kicked over the
bucket."
The man laughed and said, "Again?"
The farmer replied, "Some things you just can't explain."
"So, what did you do then?" the man asked.
"I took her right leg this time and tied it to the post on the
right."
"And then?"
"Well, I sat back down and began milking her again. Just as I
got the bucket full, the stupid cow knocked over the bucket
with her tail."
"Hmmm," the man said and nodded his head.
"Some things you just can't explain," the farmer said.
"So, what did you do?" the man asked.
"Well," the farmer said, "I didn't have any more rope,
so I took off my belt and tied her tail to the rafter.
In that moment, my pants fell down and my wife walked in
...Some things you just can't explain."