Can never forget the following comments by a consultant:
Q. What does he tell a client who desperately wants to buy into the market?
A. "Buy half of your desired position now"
Q. What does he tell a client who is losing money in his position and wants to sell?
A. "Sell half your position now"
Now just imagine what would he tell his clients if the market moved up and what would he tell them if the market moved down.