What's your biggest mess up on Veve so far?

In light of me FOMOing and trying to flip the Darkhawk UR when it was first dropped, paying 190 for it and watching it plummet to 90 for 2 months. THEN when I saw it go past 110 the other day, listing it for 140 thinking I'd only make a small loss but at least its better than 90, only to have someone buy it one random day. THEN I check why the comic randomly sold and see its now selling for 279 minimum, what are other peoples mess ups because I am feeling a fucking balloon right now.