[Clever]

I totally agree with you colleagues. These are some of the unforeseen issues that can arise in any project. It is always important top be prepared to face such unplanned events that may affect your research. If in the initial design of the research you had taken into account negative unforeseen events, then you will have a back up plan to address such issues. Life is not always straight forward and such obstacles are expected in any normal life of a persons project or research.