T/thank Y/you, S/sir, I/i T/hink I/i W/will K/keep M/my F/former P/practice.
I can see now that lowercase "i" is not obligatory. I want to obey every real rule,
but I don't feel this a self-humiliation. A protocol, as you say. And it was rather
difficult to learn English spelling... I hope everyone will understand.
Thank you for teaching me. Your posts are so clear.