“What’s the difference between an amateur thief and a professional thief?” (joke)

A riddle about professional robbery was posted on Reddit—Jokes on April 25, 2017:
         
Q: What’s the difference between a amateur thief and a professional thief?
A: An amateur thief says, “Give me all your money!” A professional thief says, “Sign here please..”

       
That is, the amateur thief takes all of one’s money (on the person or the premises), but a professional thief can take all of one’s money for the rest of that person’s life.
   
       
Reddit—Jokes
Posted by u/biuziceca April 25, 2017
Whats the difference between a amateur thief and a professional thief?
An amateur thief says, “Give me all your money!”
A professional thief says, “Sign here please..”
         
Twitter
WSⱯꓛꓤⱯS ꓨNIꓥIꓶ
@SarcasmLiving
An amateur thief says, “Give me all your money!”
A professional thief says, “Sign here please..”
9:00 PM · Apr 25, 2017·Twitter for Android
 
Twitter
Bob Kostic
@causticbob
Whats the difference between an amateur thief and a professional thief?
An amateur says, “Give me all your money!”
A professional thief says, “Sign here please”
6:37 AM · May 1, 2018·Twitter Web Client
 
Reddit—Jokes
Posted by u/anxietyhub February 16, 2020
What’s the difference between a amateur thief and a professional thief?
The amateur thief says, “Give me all your money!” The professional thief says, “Sign here please.”
 
Reddit—Jokes
Posted by u/vpetrychuk April 5, 2020
Whats the difference between an amateur thief and a professional thief?
An amateur thief says, “Give me all your money!
A professional thief says, “Sign here please.”
     
Reddit—Jokes
Posted by u/IloveRamen99 February 25, 2021
What’s the difference between a amateur thief and a professional thief?
The amateur thief says, “Give me all your money!”
The professional thief says, “Sign here please.”
 
Reddit—Jokes
Posted by u/YZXFILE April 2, 2021
What’s the difference between a amateur thief and a professional thief?
The amateur thief says, “Give me all your money!” The professional thief says, “Sign here please.”
 
Twitter
Bob Golen
@BobGolen
An amateur thief says “Give me your wallet.”
A professional thief says “Sign here.”
9:57 PM · Apr 2, 2021·Twitter Web App