Please make the following in red clear for me. I'm not sure what kind of trouble is Steve Jobs causing. Please paraphrase the following in red more easily.
Some of his teachers, however, saw him more as a troublemaker than as a special kid. Jobs found school so dull and dreadful that he and a buddy got their biggest kicks out of causing trouble. Many of the kids rode bikes to school, locking them up in racks outside Monta Loma Elementary School, and in third grade, Jobs and and his friend traded the combination to their bike locks with many of their classmates. Then one day, they went out and switched the locks all round. "It took them until about ten o'clock that night to get all the bikes sorted out," he recalled.
"traded" was a difficult word for me in the context.
Thank you for the big help.