Dunno how bad this seems but back when I was a noob, I built a rocket to get to the mun... not necessarily back, but I just wanted to land there for the first time... So I was coming down, reducing vertical velocity, but by the time I realised 'Hang on, Im moving way to fast horizontally', it was too late..... Now, I have multiple munar bases and a perfected space craft dubbed 'Kerpollo'.