Beat up at work.
Beat up in sparring.
Learned things both places.
In sparring: jab and pivot inside or out; in close, try fake jab, pivot inside, hook and cross.
Jab while moving to get out of tight spot.
Hand moves first in jab.
Don't use up energy with useless stressed out movements in tight quarters getting hit.
To bump: Pivot to weak spot, bump, punch.