A politician has urged Dumfries and Galloway residents to maintain a cautious approach to the relaxation of lockdown rules, or risk facing a return to stricter measures.MSP Colin Smyth says locals must act responsibly or they will force a second phase of harsher restrictions.He spoke after First Minister Nicola Sturgeon announced a slight easing of coronavirus lockdown rules last Thursday.She gave the go-ahead for small measures such as a return to socially-distanced outdoor sports like golf, tennis, bowls and fishing and allowed garden centres and local authority tips to reopen.Ms Sturgeon also cleared the way for two separate households to meet outdoors as long as there are no more than eight people and announced that Scots can travel to