Imagine that you have been working with a client, Leonard, who is in recovery from severe depression. Leonard became very depressed when he found out that his 21-year-old son, Tim, was assaulted and killed while traveling in South America, five years ago. Since then, Tim has been avoiding everything in relation to South America. As Tim's fifth death anniversary is approaching, Leonard decides that he and his wife want to travel to South America as a way to commemorate their lost son. Tim has been doing well in managing his depression, but you are aware that he has lapsed in the past around the time of Tim's death anniversary. 

Briefly explain how considerations of 'dignity of risk' may apply in determining your response to Tim.