I have seen a picture of one but can't identify it now.
Under magnification it looked very fierce.
2 definite antenna, too few legs for millipede.
Found on its own under a piece of wood.
No interactions present.
Found the picture while looking for something else !
It's a Common Centipede : Lithobius forficatus
had to put this in for my own peace of mind....
Lat/Lng: 56.46999, -2.85372
OS grid ref: NO475311
Nature reserve and rock garden near North Sea.