premise: How to break a lock<br>Determine whether your padlock has a single-or double-lock shackle. In most cases, this will be impossible to determine by just looking at the padlock. Check its packaging, contact its manufacturers, or research it online to discover what kind of shackle it has.
hypothesis: Manufacturers of padlocks don't care about safety
reason: Manufacturers of padlocks are not explicitly in the business of caring about safety, they really just want money