feelings, animosity, low boiling point, temperament, short fuse, spleen, temper, tetchiness, temper, anger, hackles, irascibility, irascibleness.
Andy has his dander
At last he got his dander
up, and he thought it was about time to interfere, so he rapped on the table, and asked for silence.
What have I done to 'riz your dander,
' as you elegantly express it here?