I did many years ago...
"You are responsible for everything" is what I learned.
If there is not enough money for payroll, you have to pay everyone except yourself.
If the manager is sick - you have to come in and work the shift.
If the customers complain, you have to listen to it.
If you are looking for positive things (....and there is not a lot of money in flowers)
..If you can keep your business open for 5 years, you will probably stay in business for 5 more.
....No one tells you what to do (except the bankers and your accountant)
..........You can set your own hours (as long as you realize that if you goon vacation and your manager winds up in the hospital after a car accident...you will have to cut your vacation short.)
...................All the money the business generates is YOURS! (After you pay your employees, taxes, rent, utilities, suppliers, and any loans you took out to start the business.)