Hi all, I have some questions that I can’t seem to find answers to but I’m sure that the average fountain pen user will know. Firstly I am about to buy a pen and haven’t used a fountain pen before. Can’t wait to be honest. I’m going to start with a cheaper Sheaffer and use the provided cartridge until I know that it is right for me. Then I’m going all out. But let’s not get ahead of ourselves. I do a lot of writing daily, mostly notes etc. I wanted to know: - what makes a fountain pen leak? Will it leak if it is in my work bag and it is in its side? - is it ok to have the fountain pen on its side? -I normally have my pen in my top pocket with the top facing up. Will the heat I conduct make the pen leak? -I’m a lefty, is it going to be a major pain to write without smudging?