I've done it
My first time landing at a grass airfield that I had never visited before. I was being guided in by a pilot who allegedly knew the strip and had landed there "many times".
On final, and into a setting sun, I remarked that I couldn't distinguish the runway from the surrounding "green stuff". No problem says my guide - land to the left of that marker board. It was only as the wheels disappeared into the crop that we realised we were 15 ft to the left of the runway. Stuck in a little right boot and got us back onto the mown area.
Luckily the soil was rock hard and the only damage was a little paint scuffing on the spats.
I did momentarily consider applying power and going around, but thought that there was a risk of more damage if we had gotten stuck in the crops at full power.
Moral : never believe the guy who says "it'll be alright".