Occasion 1 - Towards the end of a meeting with my manager when I was trying to explain how I felt.
Occasion 2 - A colleague decided what I really needed was to see photos of him holding his new born grandson.
Occasion 3 - This was the closest I came to crying. I was going through my 500 e-mails and came across one sent to everyone in our section including me informing everyone that Orson had died. It was a very short e-mail just a sentence or two. What got me was my colleague used the exact words I used in an e-mail to her, ending with the words "...and he was perfect." it made me sad (even thinking of that e-mail makes me a little sad) but I am very glad she used those words.