I've been a "firefighter" on our big money-making project for like a year now and probably will be for the next year. Every sprint, fully booked out.
However, this sprint, some people think I have time to brainstorm, learn new tech and attend meetings related to a completely new project.
"Will it done in 2 weeks?"
"How long do you estimate?"
I can knock up a rough version of your fucking application in about a week if someone grows some fucking balls and schedules me some fucking time for it. STFU and stop interrupting my other work. Allocate some time or shove it up your ass so far until you regurgitate it then swallow it again and choke on it.