Parallel

What did Beethoven say to Johann Sebastian when he was helping him parallel park?
“Bach it up.”
Why is it sad that parallel lines have so much in common?
Because they’ll never meet.
Why did the dog fail his driving test?
Because he couldn’t parallel bark.
I took my boat out to go fishing today. I looked over and saw my neighbor’s dock was parallel to mine.
I guess I found my self in a real “para-docks”