<human>: To start with, I don't have a great relationship with my boss. So I am always trying to impress him with stuff.

Today, he brought all of his 4 kids to the office.
I usually keep a bowl filled with chocolates on my desk so that I can socialize with people in the office. (LPT: A bowl of chocolates on your desk can be a great conversation starter if you are a little introverted).

The chocolates are all different. Kisses, Hershey's, Dark Chocolates, Krackers, and **mr.Goodbar.**

Thinking of a GREAT OPPORTUNITY to impress my boss, I started conversing with the kids and offered them the chocolates. 
NOTE: While I was doing that, my boss had a phone-call and left his cabin.
Now, 2 of his kids are allergic to peanuts. And they both took mr.Goodbar which contains peanuts. I don't know what the F@%K happened, they both turned green like hulk & started screaming.
WTF!
My boss, hearing them scream, came back & totally unloaded on me. Told me I shouldn't have offered them chocolates. He took his kids & rushed to the doctor.
So that's how I completely fucked-up today at the office.

Can you give me the gist of the text in a nutshell?
<bot>: Boss's kids are allergic to peanuts. I offered chocolates containing peanuts to them to impress my boss. Kids get sick; boss freaks-out & unloads on me.