First, we expose our presententation about "Defining and Solving the Resources Allocation in Ad-Hoc wireless networks as a SAT problem": Pure crap in comparision the other papers. We're in the lower position. My ego went down.
Then the expositions in the research program. Didn't talk, didn't move, didn't understand a thing. Asked for a cigarrete for Hector, the PhD student, he answered me to follow him to the lab where they were. I saw a robot simulation written in C for Linux. It's so buggy. I helped him to debug it. Pushed up my self-estime.