diff --git a/mods/mobs/api.lua b/mods/mobs/api.lua
index feb9857..9439dff 100644
--- a/mods/mobs/api.lua
+++ b/mods/mobs/api.lua
@@ -2711,7 +2711,7 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir)
 	end
 
 	-- add weapon wear
-	punch_interval = tool_capabilities.full_punch_interval or 1.4
+	--punch_interval = tool_capabilities.full_punch_interval or 1.4
 
 	-- toolrank support
 	local wear = floor((punch_interval / 75) * 9000)
@@ -2824,7 +2824,9 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir)
 
 		-- use tool knockback value or default
 		kb = tool_capabilities.damage_groups["knockback"] or kb -- (kb * 1.5)
-
+		if kb > 10 then
+			kb = 10
+		end
 		self.object:set_velocity({
 			x = dir.x * kb,
 			y = up,
@@ -3293,12 +3295,12 @@ function mob_class:on_step(dtime)
             if minetest.get_player_by_name(self.owner) then
 			    local inv = minetest.get_player_by_name(self.owner):get_inventory()
 			    inv:set_size("dog",8)
-			    for _,object in ipairs(minetest.env:get_objects_inside_radius(pos, 15)) do
+			    for _,object in ipairs(minetest.get_objects_inside_radius(pos, 15)) do
 				    if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
 					    if inv and inv:room_for_item("dog", ItemStack(object:get_luaentity().itemstring)) then
 						    if ItemStack(object:get_luaentity().itemstring):get_name() == "tutorial:geschenkpapier" or ItemStack(object:get_luaentity().itemstring):get_name() == "tutorial:geschenkpapier_death" or ItemStack(object:get_luaentity().itemstring):get_name() == "tutorial:dna_string" then
-							    object:remove()
 							    inv:add_item("dog", ItemStack(object:get_luaentity().itemstring))
+								object:remove()
 						    end
 					    end
 				    end
@@ -3310,12 +3312,12 @@ function mob_class:on_step(dtime)
             if minetest.get_player_by_name(self.owner) then
 			    local inv = minetest.get_player_by_name(self.owner):get_inventory()
 			    inv:set_size("cat",8)
-			    for _,object in ipairs(minetest.env:get_objects_inside_radius(pos, 15)) do
+			    for _,object in ipairs(minetest.get_objects_inside_radius(pos, 15)) do
 				    if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
 					    if inv and inv:room_for_item("cat", ItemStack(object:get_luaentity().itemstring)) then
 						    if ItemStack(object:get_luaentity().itemstring):get_name() == "tutorial:geschenkpapier" or ItemStack(object:get_luaentity().itemstring):get_name() == "tutorial:geschenkpapier_death" or ItemStack(object:get_luaentity().itemstring):get_name() == "tutorial:dna_string" then
-							    object:remove()
 							    inv:add_item("cat", ItemStack(object:get_luaentity().itemstring))
+								object:remove()
 						    end
 					    end
 				    end
diff --git a/mods/tutorial/init.lua b/mods/tutorial/init.lua
index 7cbb8bb..82af37b 100644
--- a/mods/tutorial/init.lua
+++ b/mods/tutorial/init.lua
@@ -14,7 +14,7 @@ minetest.register_on_joinplayer(function(player)
 		offset = {x=0, y=30},
 		alignment = {x=1, y=0},
 		number = 0xFFFFFF ,
-		text = "Game Version	 :  3.5.3",
+		text = "Game Version	 :  3.5.4",
 	})
 end)