Only if they sign a separation agreement.

Fire them or find a different job for them.

Do the parents come in to buy ice cream for their kids?

If so, don’t piss them off.

The economy is on a decline.

Look for some way to proved more worth. Include washing the dogs and/or something else.

Another thing to do is to price out a package. $X per week and it includes 3 walks, one bath, treats, etc. Leave a little personalized bag of treats each week for the owners after the bath with a weekly digest.

Also offer vet visits, etc.

Are you willing to give up your hourly wages for a cut of profit?

Also - 50/50 is never a good idea. One person has to own more and have the final say.

Look at the financials for the past 5 years and see what your 50% of profit would have been. If it looks good and you are willing to do the work then this could be a good deal.

Make sure that there is a buy/sell agreement and that you have a succession plan in place as well. This saves a lot of headache down the road.