Signs...

that you are working too late...

1. everyone else has gone home
2. the cleaner is hoovering the office
3. day-time security guard has left, night-time guard on duty (they change over at 7pm)
4. you get to the car park to find yours is the only car left

Yep, all 4 signs were there tonight! But tomorrow I get to work from home so instead of commuting for an hour, I'm having an extra hour in bed, bliss!

And I've found a classic song to go with my blip - Bachman Turner Overdrive, Taking Care of Business - have a listen here