I am astounded by some of these reactions. Living overseas requires learning the language as a matter of courtesy, let alone convenience. I speak three other European languages - mainly through visits and curiosity. It is true Thai is a difficult language to learn mainly through : 1) the alphabet, 2) Thais replying to one's attempts in English, 3) fear of making a <deleted> of it.
The alphabet is excruciating : eight types of 'p' similar with 't's. bits that go backwards and crazy 'second-floor' vowels, some phonologically missing entirely. But think of how difficult English must be with its Chaucerian German spelling. Advice : keep up, you cannot get any worse, win tiny arguments and save money when bargaining.