Obstructing the field
The only time a batsman has been dismissed obstructing the ball in a Test match was during the South African cricket team's tour of England in 1951 when , in the fifth Test , England's Leonard Hutton top edged the ball and , thinking the ball would hit the stumps , attempted to hit the ball away , thereby preventing the wicket-keeper from catching the ball . 
<triplet> South African cricket team's tour of England in 1951 <subj> 1951 <obj> point in time