First off, they prefer Charles to Chuck. Second, if you DO call them Chuck, they may "rage", thus gaining a +8 bonus to STR for CON+3 rounds, allowing them to "heave" more wood than an non-enraged critter.
Now, taking into account the average size of the non-raging animal, and the average size of your "wood", you'd find that, over an eight hour period, they could throw approximately two pounds a minute, which translates to about 120 pounds an hour, which comes out to 840 pounds a day (eight hour day, minus a half-hour lunch and two OSHA-enforced fifteen minute breaks to prevent back/shoulder injury). However, if they are enraged, (something that is reportable to OSHA), then their lifting capability is drastically increased, allowing them to throw 10 pounds a minute. However, no matter how many times they are baited, the workers have never been able to maintain the rage for more than 30 minutes within an eight hour day and also require an extra fifteen minute break. So, by enraging them, you would gain only an extra 210 pounds in your standard workday, with an overall total of 1050 pounds.
Of course, it should also be mentioned that those employees that spent a lot of time enraged tended to either a) retire at an early age or b) rip the face off the person angering them.
If roses are red and violets are blue, then what are pansies?