I take a pot to wee in and the easy@home sticks with me to work. Not sure what your office layout is but the start of my lunch I just pop into the cubicle and sit in their for 5 mins while it develops. Our toilets are in the hallway of shared office rooms so colleagues think I’ve just popped out for lunch when in reality I’m sat in the toilet but they have no idea. Currently sat waiting for todays to develop right now
I can imagine it’s harder if the toilet is visible from the office space though!