Why do I email and text?

Emailing and texting is like the modern day note passing. I am a texting machine. I can not say the same for email. I rarely ever send emails. I mainly have an account because it was required for school and most cites like Myspace and Facebook require you to have one for confirmation.
Texting on the other hand is my ultimate favorite. I text to avoid having to talk to people because if I am lying or even get nervous on the phone my tone changes and I pause a lot. So texting helps me avoid that. I also use texting for when I am at work and school. My job does not allow us to even have our cellphones out, but I have to keep mine near by because it's like the world stops when it is too far away. School is another reason why I text so much. Most of my classes have a syllabus and they clearly state in there no texting, but I figure if I have to pay to go to this damn school then I really do not care what a syllabus says.
This brings me to a question "why is everyone so offended when you text?" I do not understand how texting is disturbing if it is silent. The only time I would be offended by someone texting is if I am talking directly to them and they completely ignore what I am saying and start texting. Personally I think it's rude for someone to start talking while I am texting.
In short I basically use email for business and texting for my undercover sneaky activities during class and work.