Thirteen "TH"ings

I'm not feeling really inspired about thirteen anything today so today's list is just 13 things that start with "TH".

1. THoughts
2. THirst
3. THistles
4. THanksgiving
5. THunder
6. THeories
7. THeater
8. THesaurus
9. THread
10. THerapy
11. THeology
12. THursday
13. THirteen

Okay - you knew those last two were coming, didn't you?