I was about to expound these theories to Poirot, when his own words distracted me. 
I was going to explain the theories to Poirot before he distracted me.
I did not get distracted by Poirot and managed to expound theories to him.
I wish I hadn't talked to you at all.
Common sense indicated that it might not have been.
Three people are smiling in front of a camera.
The boy sits in a classroom.
A black dog is running through water.
A child is outside.