Forum:Bad Reaction vs. Prime-Material Dragon vs. Bad Reaction

Hiya, I run a bad reaction burn deck, and i had question about Bad Reaction vs. Prime-Material Dragon vs. Bad Reaction.

Scenario 1:"I have 'Bad Reaction to Simochi' on the field and 1 trap-card face down. And my opponent has 'Prime-Material Dragon' face up on the field. It my turn and I play 'Upstart Goblin' (Your opponent gains 1000 Life Points. Draw 1 card.) so he would gain 1000 lp, but because of Bad Reaction to Simochi, he would lose 1000 lp, but because of Prime-Material Dragon he will gain. (So he ends up getting 1000 lp)." - No fuss.

But,

Scenario 2:"Same as 'Scenario 1' BUT, at the end, I chain my Face-Down Trap-Card "Bad Reaction to Simochi", So... - he would gain 1000 lp, -  but because of Bad Reaction to Simochi, he would lose 1000 lp, -  but because of Prime-Material Dragon he will gain. -  then because of the 2nd Bad Reaction to Simochi, he would lose the 1000lp??

-/ Or would the all be negated except for the 'Upstart Goblin'.

I'm not too sure.. so I hope that someone could clarify...
 * Sorry about the confusing context of the scenarios...*

Thanks in advance.., aeioe.