I nearly came unstuck last year when I was leaving NAIA bound for Singapore. Although it's a small amount to us, I had around 15000 pesos in 1000 peso notes (£220) in my wallet, as I was heading back to the Phils after a week over in SG. When I went through the security scanner and x-ray machines, the guard made me open up my wallet and saw the cash. He told me I was only allowed to take 10K out of the country. It soon became apparent that what he really wanted was a 'souvenir'from me. At this point I somehow completely forgot how to speak English and repeatedly said I couldn't understand him. Eventually, he let me move on
