I dropped a SMB and cut my foot when wearing slippers/thongs. Needed a few stitches and then it got infected. I took different antibiotics and it kept getting worse and eventually I had to go back to aussie to get it sorted. Cost me $2000 aussie including airfares by the time I got back. My mate had a similar experience riding a motorbike with slippers/thongs or whatever they are called. Mangled his foot and had extensive hospital treatment in aussie. Both of us always wear shoes now when partying or motorbike riding in the Phils. Last year my wife's cousin was working on a construction site wearing his slippers and stepped on a nail. Three months later he died of tetanus leaving a huge hospital bill and a wife and young family. You can complain that some joints will refuse entry for no shoes but really it's just common sense.