I totally agree with Ceviche, he's entitled to do what he likes with his money. He wasn't complaining about the 8 pesos, from what I understand he simply found it amusing and cheeky and I would too if it happened to me!
I have a PGCE in Secondary Education and I have been teaching English in the Uk and abroad since 2000. I'm available for work in a school or happy to take on individual/group private lessons. I also speak Spanish and I have been living here for about 2 years.
Thanks!