As pointed out mice are vermin and you must be ruthless and eradicate them. We had an infestation a couple of winters ago, kept seeing them dart around the skirting when it was quiet and of course the droppings everywhere.
We caught a lot in spring traps but they always seemed to be babies not adult mice.
One night whilst I was playing on the comp in the dark one of the little ******s actually crawled up the inside of my trouser leg
, I moved pretty quick and gave him a hard squeeze then went into the kitchen where my wife and daughter were chatting and rolled up my trouser leg and removed the corpse in front of them. They were laughing like mad 
however the laughing stopped a couple of weeks later when all the lights on the first floor stopped working when mice chewed through the cabling.
This is why you must take control and kill the blighters. Luckily the fuses tripped and a fire was prevented but those mice could have easily burned the house down. Turned out the real infestation was in the loft and the mice we'd killed downstairs were just the offspring venturing out away from the colony. They were using the electric cabling and central heating pipework under the floors and in the stud walls to emerge around the house. Poison was the answer, lots of it placed in the loft killing the breeding adults. There's been no sign of them since but I keep vigilant as they could return. They have the ability to climb vertical brickwork which is how they got into the loft in the first place.
Eradicate them for safety's sake
.
We caught a lot in spring traps but they always seemed to be babies not adult mice.
One night whilst I was playing on the comp in the dark one of the little ******s actually crawled up the inside of my trouser leg
, I moved pretty quick and gave him a hard squeeze then went into the kitchen where my wife and daughter were chatting and rolled up my trouser leg and removed the corpse in front of them. They were laughing like mad however the laughing stopped a couple of weeks later when all the lights on the first floor stopped working when mice chewed through the cabling. This is why you must take control and kill the blighters. Luckily the fuses tripped and a fire was prevented but those mice could have easily burned the house down. Turned out the real infestation was in the loft and the mice we'd killed downstairs were just the offspring venturing out away from the colony. They were using the electric cabling and central heating pipework under the floors and in the stud walls to emerge around the house. Poison was the answer, lots of it placed in the loft killing the breeding adults. There's been no sign of them since but I keep vigilant as they could return. They have the ability to climb vertical brickwork which is how they got into the loft in the first place.
Eradicate them for safety's sake
.
