Has there ever been an experiment that you haven’t liked?If so why?

Question: Has there ever been an experiment that you haven't liked?If so why?
- Keywords:
  experiment
Asked by Jammy to Lucy on 7 Nov 2016.
- Lucy Oldacre-Bartley answered on 7 Nov 2016:
  
  Great question!
  
  Often experiments can be quite frustrating, sometimes they don’t work and after spending a long time on it it can be annoying!
  But when they do work they are all amazing!!!

Question: Has there ever been an experiment that you haven't liked?If so why?