A balloon for everyone

Rotterdam was the stage of the annual marathon today. Apparantly balloon sales people think marathon runners and their audience are the perfect clients, as next to this one, at least 6 others roamed the city centre. Still carrying loads of balloons at the end of the afternoon, so I am not sure their sales tactics worked today... 

We were a bit late: most runners had already left town and not much was left to do.

At the moment I am a bit worried for tomorrow. I need to give a course for firemen, but I am not really sure I am properly prepared and if I have enough knowledge on the topic. Well we'll see, mostly it works out just fine. Maybe a bit more preparation tonight...