Never Fall (as I do) for the "this'll definitely be the last drink" trick.
Never 'Lie-in' when the Staish wants to award you with a (pre-noted) presentation at met brief. It can lead to uncomfortable moments.
Never allow oneself to be set alight in the workplace. It contravenes many health and safety regulations.
Add at least 2 hours to your ETA for coming-home time. The bar becomes a viable option then.