Sample clearance horror stories

A friend of mine used an uncleared sample in a beat that blew up. The result? Legal threats and a percentage of all earnings going to the original artist. Lesson learned: 1. Always check if your samples are royalty-free 2. If using vinyl samples, research the original 3. Process samples beyond recognition 4. Keep receipts for all sample pack purchases 5. beatcorelab's marketplace assumes original content - be honest Don't risk your career over a sample. Create your own or use cleared ones. Anyone dealt with sample clearance issues?