I have no problem talking when I arrive at work. It's the stupid questions that drive me crazy:

1. Rode your bike today, huh? (As I am in full biking gear and pushing my bike towards my office).
2. Cold out there today? (asked on a day where the forecast low was 10F and the forecast high was 25F).
3. You riding home in the dark? (Asked at 6:00PM as I am in full biking gear with lights on pushing my bike towards the door on a day when the sun went down at 4:20PM).

I mean if you want to have a conversation, at least start with a non-obvious opening question/statement!

Maybe I am just getting old...