If you don't do training, they will do nothing as you described.
1. Buy a lot.
2. Hire people.
3. Open for business, and click hired sims. Pay for training.
4. Close the business.
5. Place a bed on the vet clinic and sleep about 4-5 hours.
6. Repeat 3-5 about 3 times.
7. When you open a clinic next time, your employee might start working.
(source: I own 6 vet lots)
If you are lazy, just build a small room with a PC, shower, and a bed for your sim
and lock the door of the room "household only". Then, open a business, pay for
training, and your sim will spend some time on his/her PC.
After few hours later, you can "pay for business" to each employee sims again without reopening the business.
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there's 3 bugs in current vet system:
1. Vet slackers (already have bug report in other thread)
2. You can "pay for training" again without closing the clinic. (in GTW/DineOut, you must close a lot to let employee go to the training)
3. Employee have "pay for training" option even his/her vet skill is max out.
