Bath survived a remarkable second-half turnaround - and the bizarre dismissal of centre Dan Hipkiss while he was in the sin-bin - to claim the points with a 23-15 win against west country rivals Exeter at the Recreation Ground.
The Chiefs were outclassed in the first half as Bath ran in early tries by Ben Williams and Kyle Eastmond and could have gone in at half-time even further behind than 15-5.
But Exeter showed all their true character to fight their way back after the break - Ignacio Mieres crossing to add to Brett Sturgess' first-half try - and had Bath on the ropes until Stephen Donald opened up an eight-point lead in the last two minutes of normal time. Even then, both sides went toe-to-toe for a full seven minutes of additional time in search of bonus points.
Hipkiss was sin-binned in the 67th minute before he stupidly interfered with Luke Arscott on the touchline as the Exeter full-back tried to field a Donald clearance.
A second yellow brought the inevitable red and that was the end of his match.