I work in an office on a high street so customers often walk in. There are 6 desks arranged in a semi circle facing the door. There's supposed to be a chair in front of each desk for customers but they often get moved. I actually work in the admin office upstairs but my manager wanted to show me something on her computer so I grabbed one of the customer chairs and was sat next to her behind her desk in front of her computer. There were two other members of staff in the office. One on the phone, the other working at her computer.
A lady walks in wanting to speak to colleague who is on the phone. Seeing he's busy she starts talking to my manager. After about 30 seconds colleague comes free so asks her to come over to his desk a couple of paces from where she's stood. The chair in front of his desk is missing (think I took it!) so my manager says "oh we'll find you a chair". I glance across the office and spot a chair in front of the other colleagues desk, another couple of paces further on from where she needs to be. Without thinking I say "oh look there's a chair by Mary" gesturing in that direction. The lady quickly grabs the chair, moves it the few feet to in front of colleagues desk and starts talking.
My manager then has a right go at me saying I should have got the chair for her and not let her move it herself. Of course in theory she's right but in reality it all happened in seconds. The lady was much closer to the chair than me so I would've had to get up, walk past her then move it. My two other colleagues were closer to her and the chair but were sat behind their desks so would've had to walk round whereas I was a the end of my managers desk so had a clearer path. I apologised saying I wasn't concentrating (wasn't really - hadn't been dealing with the woman and was waiting to resume my training session but happened to spot a chair so "helpfully" pointed it out).
I was left feeling really stupid and now regret not leaping up and moving the chair but also wonderif my manager was overreacting somewhat. The woman btw seemed perfectly happy and bid us a cheery farewell on her way out!