My son IS the aggressor!!

[mom-in-alberta]

How long have you been doing home daycare? If it's a fairly recent (like 6 months or less) transition, I would absolutely chalk it up to his reaction to home daycare, but don't feel guilty about it!! Yes, it's tough to share your mommy, not to mention your toys, your home, etc. But you made the choice for a reason and it probably outweighs his current frustration.
I would treat him EXACTLY as you would the other kids doing the same thing. If they get time out, so does he. Or whatever your method of discipline/correction may be.
Stay firm when he does that stuff, but make sure you give him a little extra time when you can. A couple more hugs during the day, extra play/story time in the evening when the d/c kids are gone. Keep it up, and this too shall pass!!