The question is simple, but I want the answer to be open from all CEans out there. Let me start.
1. I learned that Challenging the present technology to redesign and reuse the past technology! - Why? can get answered in one way or the other.

2. I learned to control my fear of hospitals and blood:
2.a.: Actually spent 2 weeks (mostly nights after work) with a friend at the hospital while he was suffering with Viral Meningitis - greatest experience ever because of the craziness of this disease!
2.b.: Actually underwent a Surgery under general anesthesia for removal of lower wisdom teeth - another great and painful experience.
2.c.: Got hurt on one of the worst places ever - toe nail and still learning to enjoy pain!

3. I learned that #-Link-Snipped-# need proper training and interest to learn.

4. I learned that your life is short even if you think it is not, and the moments you get to spend with your family should always be cherished - whatever the risk you've to take!

5. I also learned that being a good employee involves good communication with not just your peers, but also with your superiors.

6. I learned that saving money is not easy. And also about the worst and better ways of monthly financial control.

P.S.: Hoping to get a mixed response here.