Mother told us there'd be days like these

ARGO: One time I was defending the base, I felt comfortable because I was in a KV3 maxed out. I saw the red dot and was frantically told there was an enemy comming up on the base. I said "Don't worry, I'll take care of him". I then proceeded to go around this rock to pop the chump. I turned the corner and found myself nose to nose with a maxed out IS4 and a Ferdinand! I heard one of my mates laughing their butt off because they knew that I thought it was one of them who also had a KV3. Needless to say I didn't last long.
Please share a similar scenario that happend to you or someone else so we can have some good LOLs...