A human or a balloon ?

Finally we made it. Now everyone get shock. This our new invention will get on fire I market.

But, we have to wary from enemies. you know everyone's eyes on this our project. so need to live with it atleast one of them.

scientist 1 said.

ok sir but when we start trying of this invention.

junior scientist asked.

There is little time in preparation for testing material.

perhaps, we will start from tomorrow.

scientist 1 said.

sir,I'm very desperate to see results.

junior scientist said.

I'm also every excited for results. but we have to wait for few more hours. And after few hours we can see the our invention not only us whole world see our this invention. just wait and watch.

scientist 1 said.

But,sir I need to go. I have something urgent at my home. I will come early at morning.

junior scientist said.

what are you talking?we are agree to stay for few nights here for it's protection. how can you leave like this. we can't take risk. I expend my whole life for this invention. I can't take any risk.

scientist 1 said.

But,sir I need to go and I will come back as soon as possible and by the way our most important day is tomorrow and I will come back early don't worry.

junior scientist said.

ok fine, I will give you four hours. In these four hour you have to come back.

scientist 1 said.

Thank you sir. I will come back soon.

junior scientist said.

Hmm, I will wait for you.

scientist 1 said.