Nothing wrong with a padlock but why get a $20 one when a $3.75 one will provide the same protection with less damage in case of a break in. jack has a different issue and his is that he already has lock in place that fits in a rather large notch cut into the companionway door. His best options are repair or replacement. A good feature about jack's lock is that it may look to be locked even when left open. Perhaps an upgrade to one that has a lever in the back to allow locking the boat from the inside might be something to consider. Glad you got the boat opened.