“Never trust anyone who smiles this early in the morning”

“Never trust anyone who smiles this early in the morning” is a one-line saying that is usually work-related. The saying was posted on Twitter by Men’s Humor‏ on April 9, 2013.
 
“Never trust anyone who smiles before their first cup of coffee” and “Never trust anyone who smiles on a Monday” are similar sayings.
   
   
Twitter
Men’s Humor‏
@MensHumor
Never trust anyone who smiles this early in the morning.
7:30 AM - 9 Apr 2013
 
Twitter
Kate‏
@kateness20
”@MensHumor: Never trust anyone who smiles this early in the morning.” True story
7:31 AM - 9 Apr 2013
 
Funny Status
Never trust anyone who smiles this early in the morning.
April 9, 2013 Life Status Updates
Never trust anyone who smiles this early in the morning.
 
Twitter
Jordan Michael Lopez‏
@HateMeHarder
Never trust anyone that smiles this early in the morning
11:54 AM - 11 Apr 2013
     
Twitter
Bill Murray‏
@BiIIMurray
Never trust anyone who smiles this early in the morning.
11:04 AM - 31 Mar 2014
   
Twitter
Bill Murray‏
@BiIIMurray
Never trust anyone who smiles this early in the morning.
7:02 AM - 6 Oct 2017
 
Twitter
Bill Murray‏
@BiIIMurray
Never trust anyone who smiles this early in the morning.
12:30 PM - 13 Feb 2018