A partial list of bullshit lies / excuses I have heard:
"The check is in the mail."
"Gee, I don't know why it's taking so long. There must have been a delay in the mail service."
"Sorry I haven't been answering the phone all week. I have been working on a project in Oklahoma and have not been home to get the old check canceled and send you a new one."
"If you don't get it by next Monday, I will come over and pay in person."
"Yeah I was going to come and pay on Monday, but I talked with the bank, and they said to give it a couple more days."
"Yeah I know we were supposed to meet in town yesterday, but my phone died on me and I couldn't call you to find out what time to meet."
"Well I came by your house yesterday to give you the check, but nobody answered the door so I just left."
"I don't know if you are aware of this, but we had a bunch of our goats stolen a few days ago, and it's been pretty hectic lately trying to track them down."
"We got so much snow here and the roads are bad. I will get you paid just as soon as the roads clear up enough."