getting vs becoming

a.k.a. Why your colleague did not become a baby last weekend.

Although this is the most well-known German-English mistake, I still hear it regularly. 

The English words "getting", "obtaining" and occasionally "having" translate into the word "bekommen" in German.

The English word "becoming" translates into the word "werden" in German.

For example:

Did you get the form you need from the secretary?

I got an e-mail from an old friend yesterday.

We're getting new computers at work.

Did you obtain permission to take a holiday next Friday?

The chemicals were obtained from Sigma-Aldrich.

My sister is having a baby.

I had a sandwich from the cafeteria for lunch today.

My grandfather became forgetful in his old age.

Obama became president of the USA in 2008 after a very successful presidential campaign.

Electricity generated from renewable resources is becoming increasingly important as fossil fuel supplies run out.